User:Matthias Buchmeier/en-pt-o

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-o- {interfix} (linking vowel between morphemes)  :: -o-
o {interj} (vocative particle to mark direct address)  :: ó
o {n} (name of the letter O, o)  :: ó {m}
O {particle} (a vocative particle)  :: ó
oaf {n} (imbecile)  :: imbecil, idiota
oak {n} (tree or shrub of the genus Quercus)  :: carvalho {m}
oak {n} (wood)  :: carvalho {m}
oak apple {n} (oak gall) SEE: oak gall  ::
oaken {adj} (made from the wood of an oak)  :: de carvalho
oak tree {n} (tree or shrub of the genus Quercus) SEE: oak  ::
oakum {n} (fibrous caulking material)  :: estopa {f}
oakwood {n} (wood populated with oaks)  :: carvalhal {m}, carvalheira {f}
oar {n} (implement used to row a boat)  :: remo {m}
oar {v} (row) SEE: row  ::
oar blade {n} (flanged portion of an oar)  :: {f}
OAS {initialism} (Organization of American States)  :: OEA (Organização dos Estados Americanos)
oasis {n} (quiet or peaceful place)  :: oásis {m}
oasis {n} (well surrounded by fertile region)  :: oásis {m}
oat {n} (a widely cultivated cereal grass)  :: aveia {f}
oat {n} (seeds of the oat) SEE: oats  ::
oath {n} (affirmed statement)  :: juramento {m}
oath {n} (curse) SEE: curse  ::
oath {n} (profanity)  :: palavrão {m}
oath {n} (solemn pledge)  :: juramento {m}, promessa {f}
oath {v} (to pledge)  :: jurar
oatmeal {n} (breakfast cereal, see also: porridge)  :: mingau de aveia {m}
oatmeal {n} (meal)  :: farinha de aveia {f}
oats {n} (seeds of an oat plant)  :: aveia {f}
Ob {prop} (Ob River)  :: Ob {m}
Obadiah {prop} (book of the Old Testament)  :: Abdias, Obadias {m}
Obama {prop} (surname)  :: Obama
obedience {n} (quality of being obedient)  :: obediência {f}
obedient {adj} (willing to comply with commands)  :: obediente
obelisk {n} (A tall, square, tapered, stone monolith topped with a pyramidal point)  :: obelisco {m}
obese {adj} (extremely overweight)  :: obeso
obesity {n} (act or state of being obese)  :: obesidade
obey {v} (to do as ordered by)  :: obedecer
obfuscate {v} (alter code)  :: ofuscar
obfuscate {v} (make confusing)  :: ofuscar
obfuscate {v} (make dark)  :: ofuscar
obfuscation {n} (act or process of obfuscating, or obscuring the perception of something)  :: ofuscamento {m}
obfuscation {n} (confusion, bewilderment, or a baffled state resulting from something obfuscated)  :: ofuscamento {m}
obfuscation {n} (intentionally obscuring the meaning of something to make it more difficult to grasp)  :: ofuscamento {m}
obituary {n} (biography of a recently deceased person)  :: obituário {m}
obituary {n} (brief notice of a person's death, as published in a newspaper)  :: obituário {m}
object {n} (in grammar)  :: objeto {m}
object {n} (in object-oriented programming)  :: objeto {m}
object {n} (person or thing to which an emotion is directed)  :: objetivo {m}
object {n} (thing)  :: objeto {m}
object {v} (disagree with something or someone)  :: objetar
objection {n} (act of objecting)  :: objeção {f}
objection {n} (official protest raised in a court of law)  :: protesto {m}, objeção {f}
objection {n} (statement expressing opposition)  :: objeção {f}
objective {adj} (based on observed fact)  :: objetivo
objective {adj} (not influenced by emotions)  :: objetivo
objective {adj} (relating to a material object)  :: objetivo
objective {n} (goal)  :: objetivo {m}
objective {n} ((grammar) the objective case)  :: objetivo {m}
objective {n} (lens)  :: objetiva {f}
objective {n} (material object)  :: objetivo {m}
objectivity {n} (The state of being objective)  :: objetividade {f}
object-oriented {adj} (using entities called objects)  :: orientado a objetos
object-oriented programming {n} (programming paradigm that uses objects to design application and computer programs)  :: programação orientada a objetos {f}
object permanence {n} (understanding that an object still exists when it disappears from sight)  :: permanência de objetos {f}, permanência de objeto {f}
oblast {n} (region or province)  :: óblast
obligate {adj} (Absolutely indispensable; essential)  :: exigido {m}, essencial
obligate {v} (to bind, compel, or constrain by a social, legal, or moral tie)  :: obrigação
obligate {v} (to commit (money, for example) in order to fulfill an obligation)  :: obrigação
obligation {n} (act of binding oneself by a social, legal, or moral tie to someone)  :: obrigação {f}
obligation {n} (social, legal, or moral requirement)  :: obrigação {f}, compromisso {m}
obligatory {adj} (binding)  :: obrigatório {m}
obligatory {adj}  :: obrigatório
obliged {adj} (Indebted because of a favor done)  :: obrigado {m}
obliged {adj} (Under an obligation to do something for someone)  :: obrigado {m}
obliging {adj} (Happy and ready to do favours for others)  :: prestativo
oblique case {n} (any noun case except the nominative (and vocative))  :: caso oblíquo {m}
obliquity {n} (mental or moral deviation)  :: obliquidade {f}
obliquity {n} (quality of being oblique)  :: obliquidade {f}
obliquity {n} (quality of being obscure) SEE: obscurity  ::
obliterate {v} (to remove completely, leaving no trace; to wipe out; to destroy)  :: aniquilar, obliterar
obliteration {n} (The total destruction of something)  :: obliteração {f}
oblivion {n} (state of being completely forgotten)  :: esquecimento {m}
oblivion {n} (state of forgetfulness or distraction)  :: esquecimento {m}
oblivious {adj} (failing to remember)  :: esquecediço, esquecidiço
oblivious {adj} (unaware)  :: inconsciente
oblong {adj} (longer than wide)  :: oblongo, oblongado
obloquy {n} (Abusive language)  :: xingamento {m}
obnoxious {adj} (offensive, very annoying)  :: insuportável, desagradável, obnóxio
obnubilation {n}  :: obnubilação {f}
oboe {n} (wind instrument)  :: oboé {m}
oboe d'amore {n} (instrument of the oboe family)  :: oboe d'amore {m}, oboé d'amore {m}
obolus {n} (silver coin)  :: óbolo {m}
obscene {adj} (disgusting or repulsive)  :: obsceno
obscene {adj} (lewd or lustful)  :: obsceno
obscene {adj} (offensive to current standards of decency or morality)  :: obsceno
obscenity {n} (something that is obscene)  :: obscenidade {f}
obscurantism {n} (deliberate obscurity or vagueness)  :: obscurantismo {m}
obscurantism {n} (state of opposition to progress)  :: obscurantismo {m}
obscure {adj} (dark, faint or indistinct)  :: obscuro
obscurity {n} (darkness; the absence of light)  :: obscuridade {f}
obsequious {adj} (fawning, subservient)  :: obsequioso, submisso
obsequious {adj} (obedient, compliant with someone else's orders)  :: obsequioso
observable {adj} (able to be observed)  :: observável
observation {n} (act of observing or being observed)  :: observação {f}
observation {n} (judgement)  :: parecer {m}
observation {n} (recording an event; the record of such noting)  :: registro {m}, observação
observation {n} (remark or comment)  :: observação {f}, comentário {m}
observation wheel {n} (Ferris wheel) SEE: Ferris wheel  ::
observatory {n} (lookout) SEE: lookout  ::
observatory {n} (place where celestial bodies or natural phenomena are observed)  :: observatório {m}
observe {v} (to follow)  :: seguir, acompanhar
observe {v} (to notice, to watch)  :: observar
observe {v} (to observe) SEE: notice  ::
observer {n} (he who makes observations, monitors or takes notice)  :: observador {m}
obsessed {adj} (fixated on a single topic or emotion)  :: obcecado
obsession {n} (compulsive or irrational preoccupation)  :: obsessão {f}
obsession {n} (unhealthy fixation)  :: obsessão {f}
obsessive {adj} (having one thought or pursuing one activity to the absolute or nearly absolute exclusion of all others)  :: obsessivo
obsidian {n} (a type of black glass produced by volcanoes)  :: obsidiana {f}
obsolescence {n} (state)  :: obsolescência {f}
obsolescent {adj} (in the process of becoming obsolete, but not obsolete yet)  :: obsolescente
obsolete {adj} (no longer in use)  :: obsoleto {m}, obsoleta {f}
obstacle {n} (something that impedes, stands in the way of, or holds up progress)  :: obstáculo {m}
obstetric {adj} (relating to obstetrics)  :: obstétrico, obstetrício
obstetrician {n} (a physician who specializes in childbirth)  :: obstetra {m} {f}
obstetrics {n} (care of women during and after pregnancy)  :: obstetrícia {f}
obstinate {adj} (adhering to an opinion, purpose, or course, usually unreasonably)  :: obstinado, persistente, pertinaz
obstruct {v} (To block or fill (a passage))  :: obstruir, trancar, entupir
obstruct {v} (To get in the way of so as to hide from sight)  :: obstruir, ocultar, esconder
obstruct {v} (To impede, retard, or interfere with)  :: obstruir
obstructive {adj} (causing obstructions)  :: obstrutivo
obtain {v} (to get hold of, acquire)  :: obter
obtain {v} (to hold, possess)  :: ter, possuir
obtainable {adj} (capable of being obtained)  :: obtenível, obtível
obtuse {adj} (botany, zoology: blunt)  :: obtuso
obtuse {adj} (intellectually dull)  :: obtuso, bronco, parvo
obtuse {adj} (of an angle)  :: obtuso
obtuse {adj} (of a sound: deadened or muffled)  :: abafado
obtuse {adj} (of a triangle) SEE: obtuse-angled  ::
obtuse angle {n} (angle that is greater than 90 degrees and less than 180 degrees)  :: ângulo obtuso {m}
obtuse-angled triangle {n} (obtuse triangle) SEE: obtuse triangle  ::
obviate {v} (to bypass a requirement)  :: obviar
obvious {adj} (easily discovered or understood; self-explanatory)  :: óbvio
obviously {adv} (in an obvious manner; clearly apparent)  :: obviamente
ocarina {n} (a musical instrument)  :: ocarina {f}
Occam's razor {n} (both principles)  :: navalha de Occam {f}
occasion {n} (favorable opportunity)  :: ocasião {f}
occasion {n} (happening)  :: ocasião
occasional {adj} (limited to certain occasions; not very often)  :: ocasional
occasionally {adv} (from time to time; now and then; once in a while; at infrequent intervals)  :: ocasionalmente
occident {n} (part of the horizon where the sun last appears in the evening; that part of the earth towards the sunset; the west)  :: ocidente {m}
occipital {adj} (of or pertaining to the occiput (back of the head) or the occipital bone)  :: occipital
occipital {n} (occipital bone)  :: occipital {m}
occiput {n} (back of the head or skull)  :: occipício {m}, occipúcio {m}, occipital {m}, occiput {m}
Occitan {prop} (the Romance language)  :: occitano {m}, occitânico {m}, língua d'oc {f}
Occitania {prop} (Occitania)  :: Occitânia
occult {adj} (related to the occult)  :: oculto
occult {adj} (secret; hidden from general knowledge; undetected)  :: oculto, ocultado
occult {n} (supernatural affairs)  :: oculto, ocultismo
occult {v} (to cover)  :: ocultar
occultism {n} (study of the supernatural)  :: ocultismo {m}
occultist {n} (person who practises occultism)  :: ocultista {m} {f}
occupant {n} (person sitting in a vehicle)  :: ocupante {m} {f}
occupation {n} (activity or task with which one occupies oneself)  :: ocupação {f}, serviço {m}, emprego {m}, trabalho {m}
occupation {n} (act, process or state of possessing a place)  :: ocupação {f}
occupation {n} (control of a country or region by a hostile army)  :: ocupação {f}, tomada {f}
occupational hazard {n} (an unpleasant, inconvenient, or unusual circumstance which occurs or is likely to occur during the course of one's employment)  :: ossos do ofício {m-p}
occupied {adj} (busy)  :: ocupado
occupied {adj} (militarily subjugated)  :: ocupado
occupied {adj} (reserved)  :: ocupado
occupy {v} (have (taken) control of)  :: ocupar
occupy {v} (hold a position)  :: ocupar
occupy {v} (hold attention of)  :: ocupar
occupy {v} (reside in)  :: ocupar
occupy {v} (time or space)  :: ocupar
occupy {v} (to fill (space))  :: ocupar
occupy {v} (to fill (time))  :: ocupar
occupy {v} (to occupy) SEE: consume  ::
occur {v} (be present or found)  :: ocorrer, passive or reflexive forms of encontrar
occur {v} (meet or come to the mind)  :: ocorrer
occur {v} (present itself)  :: ocorrer
occur {v} (take place)  :: ocorrer, acontecer
occurrence {n} (actual instance where a situation arises)  :: ocorrência {f}, acontecimento {m}
ocean {n} (one of the large bodies of water)  :: oceano {m}
oceanarium {n} (park where visitors can see marine animals)  :: oceanário {m}
oceangoing {adj} (oceangoing) SEE: ocean-going  ::
Oceania {prop} (geographical region)  :: Oceania {f}
Oceanian {adj} (from Oceania)  :: oceânico, oceaniense
Oceanian {n} (someone from Oceania)  :: oceânico {m}, oceaniense
oceanic {adj} (living in the ocean)  :: oceânico
oceanic {adj} (of or relating to the ocean)  :: oceânico
oceanic whitetip shark {n} (Carcharhinus longimanus)  :: galha-branca oceânico {m}
Oceanid {n} (any of the sea nymphs)  :: oceânide {f}
oceanographer {n} (person who studies oceanography, the science of oceans)  :: oceanógrafo {m}
oceanographic {adj} (relating to oceanography)  :: oceanográfico
oceanographical {adj} (oceanographical) SEE: oceanographic  ::
oceanography {n} (oceanic exploration and study)  :: oceanografia {f}, oceanologia {f}
oceanology {n} (oceanography) SEE: oceanography  ::
Oceanus {prop} (personification of the ocean)  :: Oceano {m}
ocelot {n} (feline carnivore)  :: jaguatirica {f}, gato-do-mato {m}, ocelote {m}
ochlocracy {n} (government by the masses)  :: oclocracia {f}
ochre {adj} (having yellow-orange colour)  :: ocre
ochre {n} (earth pigment)  :: ocre {m}, ocra {f}
ochre {n} (yellowish-orange colour)  :: ocre {m}, ocra {f}
o'clock {adv} (indication of time (the translations below are of "one o’clock"))  :: uma hora, uma (hora) em ponto
o'clock {adv} (the translations below are of "at one o’clock")  :: à uma (hora)
octagenarian {n} (octogenarian) SEE: octogenarian  ::
octagon {n} (polygon with eight sides and eight angles)  :: octógono {m}
octagonal {adj} (shaped like an octagon)  :: octogonal
octahedron {n} (a polyhedron with eight faces)  :: octaedro {m}
octalogy {n} (A set of eigth works of art that are connected)  :: octologia {f}, octalogia {f}
octane {n} (isomeric aliphatic hydrocarbons)  :: octano {m}
octane number {n} (measure of the antiknock properties of an automobile fuel)  :: octanagem {f}
octangular {adj} (octagonal) SEE: octagonal  ::
octavate {v} (sound one octave higher or lower)  :: oitavar
octave {n} (day that is one week after a feast day)  :: oitava {f}
octave {n} (interval)  :: oitava {f}
octave {n} (pitch octave higher than a given pitch)  :: oitava {f}
Octavius {prop} (male given name)  :: Otávio {m}
octet {n} (byte of eight bits) SEE: byte  ::
octet {n} (group of eight musicians performing together)  :: octeto {m}
octet {n} (group of eight)  :: octeto {m}
octillion {num} (a thousand trillion trillion, 1027)  :: octilhão
October {prop} (tenth month of the Gregorian calendar)  :: outubro {m}
octopus {n} (mollusc)  :: polvo {m}
octothorpe {n} (octothorpe) SEE: hash  ::
ocular {adj} (seen by the eye) SEE: visual  ::
oculist {n} (ophthalmologist) SEE: ophthalmologist  ::
oculist {n} (optometrist) SEE: optometrist  ::
odalisque {n} (a female harem slave)  :: odalisca {f}
odd {adj} (about)  :: aproximadamente
odd {adj} (casual, irregular)  :: ocasional
odd {adj} (not divisible by two)  :: ímpar
odd {adj} (not having a mate)  :: ímpar
odd {adj} (strange)  :: estranho, raro
odd {n} (odd number) SEE: odd number  ::
oddball {n} (eccentric person)  :: excêntrico {m}
odd duck {n} (strange bird) SEE: strange bird  ::
odd job {n} (task of incidental nature)  :: biscate {m}
odds {n} (the ratio of the probabilities of an event happening to that of it not happening)  :: chances {f-p}
odds and ends {n} (miscellaneous things)  :: miudezas {f-p}
ode {n} (a short poetical composition)  :: ode {f}
odeon {n} (ancient Greek or Roman building)  :: odeão {m}, odeom {m}
odeon {n} (modern theatre or concert hall)  :: odeão {m}, odeom {m}
Oder {prop} (river)  :: Oder {m}
Odesa {prop} (Odessa) SEE: Odessa  ::
Odessa {prop} (Ukrainian city)  :: Odessa {f}
Odia {prop} (Oriya) SEE: Oriya  ::
Odin {prop} (in Norse mythology, the supreme god)  :: Odin, Ódin
odious {adj} (arousing strong dislike)  :: odioso {m}, odiosa {f}
Odisha {prop} (state in India)  :: Orissa {f}
odometer {n} (instrument attached to the wheel)  :: odómetro {m} [Portugal], odômetro {m} [Brazil], hodómetro {m} [Portugal], hodômetro {m} [Brazil]
odontoblast {n}  :: odontoblasto {m}
odontocete {n} (toothed whale) SEE: toothed whale  ::
odor {n} (any smell) SEE: odour  ::
odoriferous {adj} (having an odor) SEE: odorous  ::
odorless {adj} (having no odor)  :: inodoro {m}
odour {n} (Any smell, whether fragrant or offensive; scent; perfume)  :: odor {m}
odourless {adj} (odourless) SEE: odorless  ::
Odysseus {prop} (son of Laertes; Greek leader during the Trojan War)  :: Odisseu {m}, Ulisses {m}
odyssey {n} (extended adventurous voyage)  :: odisseia {f}
odyssey {n} (intellectual or spiritual quest)  :: odisseia {f}
Odyssey {prop} (epic poem describing the journey of Odysseus)  :: Odisseia {f}
oedema {n} (edema) SEE: edema  ::
Oedipus {prop} (son of Laius and Jocasta)  :: Édipo {m}
Oedipus complex {n} (Freudian theory)  :: complexo de Édipo {m}
oeillade {n} (glance, ogle)  :: olhar {m}
oeno- {prefix} (forms terms relating to wine)  :: eno-
oesophageal {adj} (of or pertaining to the oesophagus)  :: esofágico
oesophagus {n} (the tube that carries food from the pharynx to the stomach)  :: esófago {m} [Portugal], esôfago {m} [Brazil]
oestrus {n} (a female animal's readiness to mate)  :: estro {m}, cio {m}
of {prep} (connecting numeral or quantifier with quantified)  :: de (not used with quantifiers like todo, nem todo, para todo)
of {prep} (containing, comprising or made from)  :: de
of {prep} (indicative of age)  :: de
of {prep} (introducing subject matter)  :: de, sobre, em, a respeito de
of {prep} (linking class with example of class)  :: de
of {prep} (objective genitive: connecting noun with object)  :: de
of {prep} (possessive genitive: belonging to)  :: de
of {prep} ((time) before, to)  :: para
of age {adj} (old enough to be considered an adult)  :: maior
of course {adv} (naturally)  :: claro, naturalmente, lógico
off {adj} (inoperative, disabled)  :: desligado
off {adj} (rotten)  :: estragado
off {adv} (into a state of non-operation or non-existence)  :: desligado
off {v} (To kill)  :: apagar [slang]
off {v} (To switch off)  :: apagar, desligar
offal {n} (animal's organs as food)  :: miúdos {m-p}, cabidela {f} [of birds], fressura {f}, bofes {m-p}
offal {n} (carrion) SEE: carrion  ::
offal {n} (dead body) SEE: corpse  ::
offal {n} (refuse) SEE: refuse  ::
offence {n} (offense) SEE: offense  ::
offend {v} (sin) SEE: sin  ::
offend {v} (to feel or become offended)  :: ofender-se
offend {v} (to hurt the feelings)  :: ofender
offend {v} (to physically harm, pain)  :: prejudicar
offend {v} (to transgress or violate a law or moral requirement)  :: ofender
offender {n} (a person who commits an offense against the law)  :: transgressor {m}, criminoso {m}
offender {n} (one who gives or causes offense)  :: ofensor {m}
offense {n} (act of offending against manners)  :: ofensa {f}, insulto {m}
offense {n} (act of offending against the law)  :: ofensa {f}, delito {m}, transgressão {f}
offense {n} (portion of a team dedicated to scoring)  :: ataque {m}
offense {n} (strategy and tactics employed when in position to score)  :: ataque {m}
offensive {adj} (causing offense)  :: ofensivo {m}, ofensiva {f}
offensive {adj} (relating to attack, offense)  :: ofensivo
offensive {adj} (team sports: having to do with play directed at scoring)  :: ofensivo
offensive {n} (an attack)  :: ofensiva {f}
offensive {n} (posture of attack)  :: ofensiva {f}
offer {n} (law: invitation to enter binding contract)  :: proposta {f}
offer {n} (proposal)  :: oferta {f}, proposta {f}
offer {n} (something put forth)  :: oferta {f}
offer {v} (place at disposal)  :: oferecer
offer {v} (propose)  :: oferecer
offering {n} (act of offering)  :: oferecimento {m}, oferta {f}
offering {n} (that which has been offered; a sacrifice)  :: oferenda {f}
offhand {adj} (without planning or thinking ahead)  :: improviso
office {n} (kindness) SEE: good offices  ::
office {n} (major governmental division)  :: escritório {m}
office {n} (room(s) or building used for non-manual work)  :: escritório {m}
office chair {n} (desk chair used in an office)  :: cadeira de escritório {f}
officer {n} (contraction of the term "commissioned officer")  :: oficial {m} {f}
officer {n} (one who has a position of authority in a hierarchical organization)  :: oficial {m} {f}, comandante {m} {f}
officer {n} (one who holds a public office)  :: funcionário público {m}
official {adj} (appointed to be used in medicine) SEE: officinal  ::
official {adj} (relating to an office; especially, to a subordinate executive officer or attendant)  :: oficial
official {n} (office holder invested with powers and authorities)  :: oficial {m}, funcionário {m}
officialese {n} (bureaucratese) SEE: bureaucratese  ::
officially {adv} (in an official manner)  :: oficialmente
off-licence {n} (liquor store) SEE: liquor store  ::
offline {adj} (of a system, not connected to a larger network)  :: fora de linha, offline
offset {n} (compensating equivalent)  :: compensação {f}, contrapartida {f}
offset {n} (difference in memory addresses)  :: offset {m}
offset {n} (distance by which one thing is out of alignment with another)  :: desalinhamento {m}
offset {n} (offset printing)  :: offset {m}, ofsete {m}
offset {n} (time at which something begins)  :: início {m}
offset {v} (to compensate for something)  :: compensar
offshoot {n} (that which shoots off from a main stem)  :: desvio {m}, ramificação {m}
offside {adj} (in an illegal position ahead of the ball)  :: impedido
offside {adj} (to the side of a road)  :: junto à estrada
offside {n} (offside play)  :: impedimento {m}
offspring {n} (plural or collective offspring, animal's or plant's progeny)  :: descendente {m-f}
offspring {n} (plural or collective offspring (only males, only females, both sexes or sex unspecified))  :: descendência {f}
offspring {n} (singular offspring (male, female or sex unspecified))  :: filho {m}, filha {f}, rebento {m}
of late {prep} (recently)  :: recentemente
of record {prep} (authoritative) SEE: authoritative  ::
often {adv} (frequently, many times)  :: frequentemente, seguido
oftenly {adv} (often) SEE: often  ::
Oghuz {prop} (Oghuz people)  :: oguz {m} {f}
ogive {n} (Gothic pointed arch)  :: ogiva {f}
ogive {n} (nose of a bullet, missle, or rocket)  :: ogiva {f}
ogre {n} (brutish giant)  :: ogro {m}, ogre {m}
oh {interj} (expression of surprise)  :: ó
oh dear {interj} (An expression of dismay, concern, worry or disapproval)  :: Virgem Maria!
Ohio {prop} (river)  :: Ohio {m}
Ohio {prop} (U.S. state)  :: Ohio {m}
ohm {n} (the derived unit of electrical resistance)  :: ohm {m}
Ohm's law {n} (Ohm's observation)  :: lei de Ohm {f}
oh my {interj} (good heavens) SEE: good heavens  ::
oh my God {interj} (excitement or shock)  :: meu Deus, nossa
oh my gosh {interj} (oh my God)  :: oh minha nossa
oh no {interj} (exclamation of alarm or concern)  :: bolas
oi {interj} (exclamation to get attention) SEE: hey  ::
-oic {suffix}  :: -oico
oil {n} (liquid fat)  :: óleo {m}
oil {n} (petroleum-based liquid)  :: petróleo {m}, óleo {m}
oil {v} (lubricate with oil)  :: olear
oil {v} (to grease with oil for cooking)  :: olear
oiler {n} (oil well) SEE: oil well  ::
oiler {n} (ship) SEE: oil tanker  ::
oil lamp {n} (a simple vessel used to produce light)  :: lampião {m}, candeeiro {m}
oil painting {n} (a painting done with oil paints)  :: pintura a óleo {f}, óleo {m}
oil painting {n} (art of painting with oil paints)  :: pintura a óleo {f}
oil pipeline {n} (a gas pipeline)  :: oleoduto {m}
oil platform {n} (structure for oil)  :: plataforma de petróleo {f}, plataforma {f}
oil rig {n} (oil-drilling platform)  :: plataforma de poço de petróleo {f}
oil-seed camellia {n} (Camellia oleifera) SEE: tea oil camellia  ::
oil slick {n} (thin film of oil floating on the surface of water)  :: maré negra {f}
oil tanker {n} (Ship)  :: navio-petroleiro {m}
oil well {n} (hole drilled into the earth from which petroleum is pumped)  :: poço de petróleo {m}
oily {adj} (covered with or containing oil)  :: oleoso {m}, oleaginoso {m}, oleento {m}
oily {adj} (relating to oil)  :: oleoso {m}, oleaginoso {m}, oleento {m}
oink {interj} (Representing the sound made by a pig)  :: oinc
oink {n} (sound made by a pig)  :: grunhido {m}
oink {v} (to oink)  :: grunhir
ointment {n} (viscous preparation, usually containing medication)  :: pomada {f}
Ojibwe {n} (member of Ojibwe people)  :: ojibwa {m}
Ojibwe {prop} (language)  :: ojibwa {m}, ojibwe {m}
OK {adj} (all right, permitted)  :: OK {m}
OK {adj} (in good health or in a good emotional state)  :: bem
OK {adj} (satisfactory)  :: bom
OK {adv} (OK)  :: bem
OK {interj} (acknowledgement or acceptance)  :: OK, tudo bem, certo
OK {n} (endorsement; approval)  :: ok, certo, , tá bom
okapi {n} (Large ruminant mammal)  :: ocapi {m}
okara {n} (a food made from soybean pulp)  :: okara {m}
Okazaki fragment {n} (one of many newly synthesized DNA fragments formed on the lagging template strand during replication)  :: fragmento de Okazaki {m}
Okinawa {prop} (city)  :: Okinawa {f}
Okinawa {prop} (prefecture)  :: Okinawa {f}
Okinawan {prop} (Ryukyuan) SEE: Ryukyuan  ::
Oklahoma {prop} (state)  :: Oklahoma {m}
okra {n} (Abelmoschus esculentus)  :: quiabeiro {m} (plant), quiabo {m} (pods)
okroshka {n} (cold raw vegetable soup)  :: okroshka {f}
okrug {n} (administrative division)  :: okrug {m}
Olaf {prop} (male given name)  :: Olavo
old {adj} (former)  :: antigo
old {adj} (having existed or lived for the specified time)  :: de, com; (to be X old: ter + X)
old {adj} (of a living being: having lived for relatively many years)  :: velho, idoso
old {adj} ((of an item) used, not new)  :: usado
old {adj} (of an object, concept, etc: having existed for a relatively long period of time)  :: velho, antigo
old {adj} (tiresome)  :: cansativo
old age {n} (latter part of life)  :: velhice {f}
Old Armenian {prop} (language)  :: arménio clássico {m} [Portugal], armênio clássico {m} [Brazil], arménio antigo {m} [Portugal], armênio antigo {m} [Brazil]
old as the hills {adj} (extremely old)  :: mais velho que a Sé de Braga
old boy {n} (alumnus) SEE: alumnus  ::
Old Church Slavonic {prop} (the first literary and liturgical Slavic language)  :: eslavo eclesiástico {m}, antigo eslavo eclesiástico {m}
Old Dutch {prop} (language)  :: holandês antigo {m}
Old East Slavic {prop} (language)  :: antigo eslavo oriental {m}
Old English {prop} (ancestor language of modern English)  :: inglês antigo {m}, anglo-saxão {m}, anglo-saxónico [Portugal], anglo-saxônico [Brazil]
Old English Sheepdog {n} (a breed of herding dog)  :: pastor inglês {m}
older brother {n} (a sibling's older brother)  :: irmão mais velho {m}
older brother {n} (a sibling's older brother (to be merged))  :: irmão mais velho {m}
older sister {n} (a sibling's older sister)  :: irmã mais velha {f}
older sister {n} (a sibling's older sister (to be merged))  :: irmã mais velha {f}
old-fashioned {adj} (outdated or no longer in vogue)  :: démodé, demodê, antiquado
old-fashioned {adj} (preferring the customs of earlier times)  :: antigo, antiquado [derogatory], à moda antiga
old folks' home {n} (nursing home) SEE: nursing home  ::
Old French {prop} (French language from 9th to the early 14th century)  :: francês antigo {m}
old-growth forest {n} (forest that has attained great age without significant disturbance)  :: floresta primária {f}
old habits die hard {proverb} (existing habits are hard to change)  :: velhos hábitos nunca morrem
Old High German {prop} (Old High German)  :: alto alemão antigo {m}
Old Low German {prop} (Old Saxon) SEE: Old Saxon  ::
old maid {n} (elderly unmarried woman) SEE: spinster  ::
old man {n} (elderly man)  :: velho {m}, idoso {m}, velhote {m} [informal]
old man {n} (father (slang))  :: velhote {m}
oldness {n} (state of being old)  :: velhice
Old Norse {prop} (language of Scandinavia before 1400 CE)  :: escandinavo antigo {m}, nórdico antigo {m}, norreno {m}
old people's home {n} (nursing home) SEE: nursing home  ::
old people's home {n} (retirement village) SEE: retirement village  ::
Old Portuguese {prop} (Portuguese language from 13th to 16th centuries)  :: português antigo {m}, português arcaico {m}, galego-português {m}, galaico-português {m}
old salt {n} (seadog) SEE: seadog  ::
Old Slavonic {prop} (Old Church Slavonic)  :: eslavo antigo {m}
Old Slavonic {prop} (Proto-Slavic)  :: proto-eslavo {m}
old stick {n} (chap) SEE: chap  ::
Old Testament {prop} (first half of the Christian Bible)  :: Antigo Testamento {m}
old-timer {n} (one who has been around for a long time or has a great deal of experience)  :: veterano {m}
old woman {n} (elderly woman)  :: velha {f}, idosa {f}
Old World {prop} (The Eastern Hemisphere, especially Europe and the Near East)  :: Velho Mundo {m}
oleander {n} (A poisonous shrub)  :: oleandro {m}, espirradeira {f}
oleic {adj} (of or pertaining to oil)  :: oléico
oleic {adj} (of or pertaining to oleic acid)  :: oleico
oleic acid {n} (fatty acid with 18 carbon atoms and one double bond, found in olive oil)  :: ácido oleico {m}
olfaction {n} (the sense of smell)  :: olfato {m}
olfactory {adj} (concerning the sense of smell)  :: olfactório, olfatório, olfativo
Olga {prop} (female given name)  :: Olga {f}
oligarch {n} (a member of an oligarchy)  :: oligarca {m} {f}
oligarchic {adj} (of or pertaining to oligarchy)  :: oligárquico
oligarchy {n} (Government by only a few)  :: oligarquia {f}
oligarchy {n} (State ruled by such a government)  :: oligarquia {f}
oligarchy {n} (Those who make up an oligarchic government)  :: oligarquia {f}
oligo- {prefix} (few)  :: oligo-
oligochaete {n} (worm of the class Oligochaeta)  :: oligoqueta {m}
oligonucleotide {n} (a short sequence of nucleotides)  :: oligonucleotídeo {m}
oligopoly {n} (economic condition)  :: oligopólio {m}
olive {adj} (colour)  :: verde-azeitona, verde-oliva
olive {n} (colour)  :: verde-oliva {m}
olive {n} (fruit)  :: azeitona {f}, oliva {f}
olive {n} (olive tree) SEE: olive tree  ::
olive {n} (wood)  :: oliveira {f}
olive grove {n} (cluster of olive trees)  :: olival {m}
olive oil {n} (oil pressed from olives)  :: azeite {m}
Oliver {prop} (male given name)  :: Olivério {m}, Óliver {m}
olive ridley sea turtle {n} (Lepidochelys olivacea)  :: tartaruga-oliva {f}
olive tree {n} (tree that produces olives)  :: oliveira {f}
Olivia {prop} (female given name)  :: Olívia
olivine {n} (family of minerals forming orthorhombic crystals)  :: olivina {f}
olla podrida {n} (miscellaneous assortment) SEE: hodgepodge  ::
olla podrida {n} (Spanish stew of seasoned meat and vegetables)  :: olla podrida {f}
olm {n} (Proteus anguinus)  :: próteo {m}, proteu {m}
Olmütz {prop} (city in Moravia) SEE: Olomouc  ::
Olmutz {prop} (city in Moravia) SEE: Olomouc  ::
olorine {adj} (of or pertaining to swans) SEE: cygnine  ::
Oltenia {prop} (Oltenia)  :: Oltênia {f} [Brazil], Olténia {f} [Portugal]
Olympia {prop} (ancient city in Greece)  :: Olímpia
Olympiad {n} (period of four years)  :: olimpíada {f}
Olympic {adj} (of or pertaining to mountain Olympus)  :: olímpico
Olympic {adj} (of or pertaining to the Olympic Games)  :: olímpico
Olympic Games {prop} (international multi-sport event inspired by the ancient festival, see also: Olympics)  :: Jogos Olímpicos {m-p}, Olimpíadas {f-p}
Olympic goal {n} (goal scored directly from a corner kick)  :: gol olímpico {m}
Olympics {prop} (sport event, see also: Olympic Games)  :: Olimpíada {f}, Olimpíadas {f-p}
Olympic Winter Games {prop} (Olympic Winter Games)  :: Jogos Olímpicos de Inverno
Olympus {prop} (mountain)  :: Olimpo {m}
-oma {suffix} (suffix forming nouns indicating tumors or masses)  :: -oma {m}
Omaha {n} (a member of the Omaha tribe)  :: omaha {m-f}
Omaha {n} (Omaha hold 'em) SEE: Omaha hold 'em  ::
Omaha {prop} (city in Nebraska, United States)  :: Omaha {f}
Omaha {prop} (Native American tribe of northeastern Nebraska and western Iowa)  :: omaha {m-p}
Omaha {prop} (the language spoken by the Omaha tribe)  :: omaha {m}
Oman {prop} (country in the Middle East)  :: Omã
Omani {adj} (Of, from, or pertaining to Oman, the Omani people or the Omani language)  :: omanita, omani, omaniano
Omani {n} (person from Oman or of Omani descent)  :: omanita {m} {f}, omani {m} {f}
Omar {prop} (male given name)  :: Omar {m}
omasum {n} (the third part of the stomach of a ruminant)  :: omaso {m}
ombudsman {n} (official who investigates complaints)  :: ombudsman {m}, ouvidor {m}
ombudswoman {n} (a female ombudsman)  :: ouvidora {f}
omega {n} (angular velocity) SEE: angular velocity  ::
omega {n} (letter of the Greek alphabet)  :: ómega {m}
omelette {n} (dish made with beaten eggs)  :: omelete {f}, fritada {f}
omen {n} (prophetic significance)  :: presságio {m}
omen {n} (something which portends or is perceived to portend a good or evil event or circumstance in the future; an augury or foreboding)  :: presságio {m}
omiai {n} (formal marriage interview) SEE: miai  ::
omicron {n} (Greek letter)  :: ômicron {m}
ominous {adj} (giving indication of a coming ill)  :: agourento {m}
ominous {adj} (of or pertaining to an omen or to omens; being or exhibiting an omen)  :: ominoso, agourento {m}
omission {n} (something deleted or left out)  :: omissão {f}
omission {n} (something not done or neglected)  :: omissão {f}
omission {n} (the act of neglecting to perform an action one has an obligation to do)  :: negligência {f}
omission {n} (the act of omitting)  :: omissão {f}
omit {v} (to leave out or exclude)  :: omitir
omni- {prefix} (all)  :: oni-, omni-
omnibus {n} (book)  :: compilação {f}
omnibus {n} (vehicle)  :: ônibus {m}
omnidirectional {adj} (in every direction)  :: omnidirecional {m} {f}
omnipotence {n} (unlimited power)  :: omnipotência {f} [Portugal], onipotência {f} [Brazil]
omnipotent {adj} (having unlimited power, force or authority)  :: omnipotente, onipotente [Brazil]
omnipresence {n} (the ability to be at all places at the same time)  :: onipresença {f}
omnipresent {adj} (being everywhere)  :: omnipresente
omniracial {adj} (concerning every race)  :: omniracial
omniscience {n} (capacity to know everything)  :: omnisciência {f} [Portugal], onisciência {f} [Brazil]
omniscient {adj} (having total knowledge)  :: onisciente
omnitheism {n} (The belief that all religions contain a core recognition of the same God)  :: omniteísmo {m}
omnium-gatherum {n} (collection of miscellaneous things) SEE: hodgepodge  ::
omnivore {n} (animal eating both plants and meat)  :: onívoro
omnivorous {adj} (having the ability to eat both animal and vegetable food)  :: omnívoro [Portugal], onívoro [Brazil]
omphalo- {prefix} (relating to the navel)  :: onfalo-
omphalocele {n} (hernia of the navel)  :: onfalocele {f}
Omsk {prop} (large city in Russia)  :: Omsk {f}
on {adj} (in the state of being active, functioning or operating)  :: ligado
on {prep} (at the date of)  :: na, no
on {prep} (covering)  :: em
on {prep} (dealing with the subject of)  :: na, no
on {prep} (positioned at the upper surface of)  :: na, no, sobre
on {prep} (touching; hanging from)  :: na, no
on accident {adv} (by accident) SEE: by accident  ::
on account of {prep} (because of, owing to)  :: devido a
onager {n} (military engine)  :: onagro {m}
onager {n} (wild ass)  :: onagro {m}
on air {prep} (transmitting live)  :: no ar
on all fours {adv} (on hands and knees)  :: de quatro
onanism {n} (masturbation)  :: onanismo {m}
on a whim {prep} (done without thinking seriously about the consequences)  :: num repente
on behalf of {prep} (speaking or acting for)  :: em nome de
on board {adv} (aboard) SEE: aboard  ::
onboard {adv} (on a vehicle) SEE: on board  ::
once {adv} (formerly)  :: outrora
once {adv} (one and only one time)  :: uma vez
once {conj} (as soon as)  :: assim que, logo após/depois, tão logo
once again {adv} (one more time)  :: novamente, denovo, de novo, outra vez
once and for all {adv} (Finally, permanently, conclusively)  :: de uma vez por todas
once bitten, twice shy {proverb} (one is cautious in the future if hurt in the past)  :: gato escaldado de água fria tem medo
once in a blue moon {adv} (very rarely)  :: de vez em nunca
once more {adv} (one more time) SEE: once again  ::
once upon a time {adv} (traditional beginning of children’s stories, especially fairy tales)  :: era uma vez
oncilla {n} (Leopardus tigrinus)  :: gato-do-mato-pequeno {m}
oncogene {n} (gene)  :: oncogene {m}
oncological {adj} (of or pertaining to oncology) SEE: oncologic  ::
oncologist {n} (one who specialises in oncology)  :: oncologista
oncology {n} (branch of medicine)  :: oncologia {f}
Ondine's curse {prop} (medical condition, sufferers of which stop breathing if they fall asleep)  :: maldição de Ondina {f}
one {adj} (a single, unspecified thing)  :: algum
one {adj} (of a period of time)  :: algum, um
one {adj} (sole, only)  :: único
one {adj} (whole, entire)  :: um
one {n} (digit or figure)  :: um {m}
one {num} (cardinal number 1)  :: um {m}
one {num} (ordinal number) SEE: first  ::
one {num} (ordinal number) SEE: number one  ::
one {pron} (impersonal pronoun)  :: not translated
one {pron} (indefinite personal pronoun)  :: use third-person singular reflexive
-one {suffix} (ketone)  :: -ona {f}
one and a half {num} (one and a half)  :: um e meio
one another {pron} (idiomatic, reciprocal pronoun)  :: um ao outro {m}, se
on earth {prep} (expletive giving emphasis after interrogative word)  :: diabos
one by one {adv} (individually)  :: um por um
one-child policy {n} (a policy of population control)  :: política do filho único {f}
one day {adv} (at unspecified time in the future)  :: algum dia
one day {adv} (at unspecified time in the past)  :: uma vez
one-dimensional {adj} (having length, but no width, height or depth)  :: unidimensional
one-eyed {adj} (having only a single eye)  :: caolho, zanolho, zarolho
one for all, all for one {phrase} (motto: working for each other)  :: um por todos, todos por um
one for the road {n} (a final drink before one leaves)  :: saideira {f}
one hundred and one {n} (figure 101)  :: cento e um
one hundred and one {num} (one hundred plus one)  :: cento e um
one hundred million {num} (number 100,000,000)  :: cem milhões
one hundred one {num} (101)  :: cento e um {m}
one hundred percent {adj} (complete, total)  :: cem por cento
one hundred percent {adv} (completely, totally)  :: cem por cento
one hundred six {num} (number 106)  :: cento e seis
oneiric {adj} (resembling a dream; dreamlike) SEE: dreamlike  ::
oneirologist {n} (interpreter of dreams)  :: onirólogo {m}
oneirology {n} (the study of dreams)  :: onirologia {f}
oneironaut {n} (explorer of dream worlds)  :: onironauta
one million {num} (cardinal number 1000000) SEE: million  ::
one moment, please {phrase} (one moment please)  :: um momento, por favor
oneness {n} (state of being undivided)  :: unidade {f}
one-night stand {n} (sexual encounter)  :: ficada {f}
one o'clock {n} (the start of the second hour)  :: uma hora
one-of-a-kind {n} (one of a kind) SEE: one of a kind  ::
one of these days {adv} (one day)  :: qualquer dia desses
onerous {adj} (burdensome)  :: oneroso {m}, onerosa {f}
one's {pron} (belonging to)  :: seu, de alguém
one's bark is worse than one's bite {phrase} (acts in a threatening way but is relatively harmless)  :: cão que ladra não morde
oneself {pron} (The person, previously mentioned)  :: se, si [prepositional]
one-sided {adj} (partial or biased in favour of one faction)  :: parcial, unilateral
one-sided {adj} (with one competitor dominant over the other)  :: unilateral
one-size-fits-all {adj}  :: tamanho único {m}
one's marbles {n} (sanity) SEE: sanity  ::
one swallow does not a summer make {proverb} (one instance of an event does not necessarily indicate a trend)  :: uma andorinha só não faz verão
one thousand {num} (cardinal number 1000) SEE: thousand  ::
one-way {adj} (allowing movement in only one direction)  :: de mão única
one-way {adj} (allowing travel in only one direction)  :: sem retorno
one-way street {n} (road in which traffic is only allowed to proceed in one direction)  :: rua de mão única {f}
one-way ticket {n} (a ticket granting permission to travel to a place but not back)  :: passagem só de ida {f}, bilhete só de ida {m}, passagem sem volta {f}, passagem sem retorno {f}, bilhete sem volta {m}
on foot {prep} (walking, jogging, running)  :: a pé
ongoing {adj} (continuing, permanent)  :: contínuo, em curso
ongoing {adj} (presently or currently happening; being in progress)  :: em andamento, corrente, em curso
on hand {adv} (available)  :: em mãos
onion {n} (bulb)  :: cebola
onion {n} (plant)  :: cebola {f}
onion dome {n} (onion-shaped dome)  :: cúpula bulbosa {f}
online {adj} (available over the Internet)  :: online
online {adj} (connected to a network)  :: online, em linha
online {adj} (connected to the Internet)  :: online, em linha
onlooker {n} (spectator) SEE: spectator  ::
only {adj} (alone in a category)  :: único
only {adj} (singularly superior; the best)  :: único, melhor
only {adj} (without sibling)  :: filho único
only {adv} (as recently as)  :: apenas, somente
only {adv} (no more than)  :: apenas, somente
only {adv} (without others or anything further; exclusively)  :: apenas, somente
only {conj} (but)  :: mas, porém, todavia
only {conj} (except)  :: salvo que, exceto que
only {conj} (however)  :: mas, porém, todavia
only child {n} (a person who has no siblings)  :: filho único {m}, filha única {f}
onomasiology {n} (branch of lexicology)  :: onomasiologia {f}
onomastic {adj} (of, or relating to onomastics)  :: onomástico {m}
onomastics {n} (branch of lexicology devoted to the study of names)  :: onomástica {f}
onomatopoeia {n} (property of a word of sounding like what it represents)  :: onomatopeia {f}
onomatopoeia {n} (word that sounds like what it represents)  :: onomatopeia
onomatopoeic {adj} (having the property of onomatopoeia)  :: onomatopaico {m}, onomatópico {m}, onomatopeico {m}
onomatopoeic {adj} (of or relating to onomatopoeia)  :: onomatopaico {m}, onomatópico {m}, onomatopeico {m}
onomatopoetic {adj} (concerning onomatopoeia) SEE: onomatopoeic  ::
on purpose {prep} (purposely, with intention)  :: de propósito
onry {adj} (ornery) SEE: ornery  ::
onsen {n} (a Japanese hot spring)  :: onsen {m}
onset {n} (medicine: initial phase of a disease or condition)  :: anábase {f}
onset {n} (phonology: initial portion of a syllable)  :: ataque {m}
onset {n} (rushing or setting upon)  :: investida {f}
onslaught {n} (fierce attack)  :: assalto {m}, investida {f}
onslaught {n} (large quantity of people or things resembling an attack)  :: invasão {f}
onslaughter {n} (onslaught) SEE: onslaught  ::
Ontario {prop} (Lake between Ontario province and New York State)  :: Ontário {m}
Ontario {prop} (Province in eastern Canada)  :: Ontário
on the back burner {adv} (not immediately)  :: em banho-maria
on the brink {prep} (very near to)  :: à beira de
on the contrary {prep} (opposite)  :: ao contrário, pelo contrário
on the fly {adv} ((baseball, of the ball) Without a bounce)  :: sem sobressaltos
on the loose {prep} (not in captivity)  :: à solta
on the one hand {adv} (from one point of view)  :: por um lado
on the other hand {adv} (from another point of view)  :: por outro lado
on the ropes {adj} (showing signs of imminent failure or collapse)  :: na corda bamba
on the same wavelength {prep} (in rapport)  :: em sintonia
on the street {prep} (without a home)  :: nas ruas
on the tip of one's tongue {prep} (known but not quite remembered)  :: estar na ponta da língua (to be on the tip of one’s tongue)
on the warpath {prep} (very angry or upset)  :: em pé de guerra
on the way {prep} (coming)  :: a caminho
ontic {adj}  :: ôntico {m}
on time {adv} (punctually)  :: na hora
onto {adj} (surjective) SEE: surjective  ::
ontogenic {adj} (ontogenetic) SEE: ontogenetic  ::
ontological {adj} (of, or relating to, ontology)  :: ontológico {m}
ontology {n} (study of being)  :: ontologia {f}
ontology {n} (system model in computer science)  :: ontologia {f}
on top of {prep} (atop) SEE: atop  ::
onus probandi {n} (duty of a party in a legal proceeding)  :: ônus da prova {m}
onward {adv} (In a forward direction)  :: para diante, a partir de agora
onychophagia {n} (compulsive biting of one's nails)  :: onicofagia {f}
on your mark, get set, go {phrase} (three-command start of racing)  :: preparar, apontar, fogo
onyx {n} (a banded variety of chalcedony)  :: ónix
oocyte {n} (cell that develops into egg or ovum)  :: oócito {m}, ovócito {m}
oofless {adj} (poor) SEE: poor  ::
oolong {n} (oolong tea) SEE: oolong tea  ::
oops {interj} (acknowledging a minor mistake)  :: opa, ops
Oort Cloud {prop} (cloud of comets in the Solar System)  :: nuvem de Oort
ooze {v} (to secrete or slowly leak)  :: escoar, verter, excretar, segregar
opal {n} (a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity)  :: opala {f}
opaque {adj} (hindering light to pass through)  :: opaco {m}
OPEC {prop} (Organization of Petroleum Exporting Countries)  :: OPEP {f}
open {adj} (not closed)  :: aberto
open {adj} (prepared to conduct business)  :: aberto
open {adj} (public)  :: aberto
open {adj} (receptive)  :: aberto
open {n} (sports event)  :: aberto {m}
open {v} (to become open)  :: abrir
open {v} (to begin conducting business)  :: abrir
open {v} (to bring up (a topic))  :: abrir
open {v} (to make accessible to customers)  :: abrir
open {v} (to make something accessible)  :: abrir
open {v} (to start (a campaign))  :: iniciar, começar
open air {n} (the outside)  :: ar livre
open-air {adj} (taking place outdoors)  :: a céu aberto, ao ar livre
open book {n} (mathematics) SEE: open book decomposition  ::
open book {n} (person naively honest or open)  :: livro aberto {m}
open book {n} (thing easily interpreted)  :: livro aberto {m}
opener {n} (device that opens something)  :: abridor
Open Game {n}  :: abertura aberta {f}
opening {n} (act or instance of beginning)  :: abertura {f}
opening {n} (act or instance of making or becoming open)  :: abertura {f}
opening {n} (beginning)  :: início {m}
opening {n} (first performance of a show or play by a particular troupe)  :: abertura {f}
opening {n} (something that is open)  :: abertura {f}
opening {n} (unoccupied employment position)  :: vaga {f}
openly {adv} (in an open manner, visibly, not covertly)  :: abertamente
open-minded {adj} (willing to consider new ideas)  :: de mente aberta
open relationship {n} (the relationship with possible additional relationships)  :: relacionamento aberto {m}
open sea {n} (part of the sea)  :: alto mar, mar aberto
open sesame {interj} (Open up)  :: abre-te sésamo
open source {n} (practice)  :: código aberto {m}
open source {n} (software)  :: código aberto {m}
opera {n} (building)  :: ópera {f}
opera {n} (company)  :: ópera {f}
opera {n} (score)  :: ópera {f}
opera {n} (theatrical work)  :: ópera {f}
opera house {n} (theatre for opera)  :: ópera {f}
operand {n} (quantity to which an operator is applied)  :: operando
operate {v} (medicine)  :: operar
operate {v}  :: operar
operate {v} (to operate a machine)  :: operar
operate {v} (to perform a work or labour)  :: obrar, trabalhar
operating room {n} (room in a hospital used for performing surgical operations)  :: quirófano {m}
operating room table {n} (operating table) SEE: operating table  ::
operating system {n} (software which controls computer)  :: [Portugal] sistema operativo {m}, [Brazil] sistema operacional {m}
operation {n} (method by which a device performs its function)  :: operação {f}
operation {n} (method or practice by which actions are done)  :: funcionamento {m}
operation {n} (military campaign)  :: operação {f}
operation {n} (procedure for generating a value from one or more other values)  :: operação {f}
operation {n} (surgical procedure)  :: operação {f}, cirurgia {f}
operational {adj} (determined by means of practical measures)  :: operacional
operative {adj} (based upon a surgical operation)  :: operatório
operator {n} (Chinese whispers) SEE: Chinese whispers  ::
operator {n} (mathematical operator)  :: operador {m}
operator {n} (one who operates)  :: operador {m}
operator {n} (telecommunications operator)  :: telefonista {m} {f}
operculum {n} (covering flap)  :: opérculo {m}
operetta {n} (lighter version of opera)  :: opereta {f}
Ophelia {prop} (female given name)  :: Ofélia
ophidian {adj} (of or pertaining to Serpentes)  :: ofídico
ophidiophobia {n} (ophiophobia) SEE: ophiophobia  ::
ophiophobia {n} (fear of snakes)  :: ofidiofobia {f}
Ophiuchus {prop} (zodiacal constellation of the northern summer)  :: Ofiúco {m}
ophthalmic {adj} (of or pertaining to the eyes)  :: oftálmico
ophthalmologist {n} (eye specialist)  :: oftalmologista {m} {f}, ocuista {m} {f}, oculista {m} {f}
ophthalmology {n} (eye medicine)  :: oftalmologia {f}
ophthalmopathy {n} (eye disease)  :: oftalmopatia {f}
opination {n} (the state or process of opining)  :: opinação {f}
opine {v} (to have or express an opinion)  :: opinar
opine {v} (to state as an opinion)  :: opinar
opinion {n} (EU: A judicial opinion by an Advocate General delivered to the European Court of Justice)  :: conclusão {f}
opinion {n} (thought a person has formed about a topic)  :: opinião {f}
opinion {v} (opine) SEE: opine  ::
opinionated {adj} (holding very strong opinions)  :: opinoso, opiniático
opinionated {adj} (obstinately holding to one's opinion)  :: teimoso
opium {n} (drug from opium poppy)  :: ópio
Oporto {prop} (second-largest city of Portugal)  :: Porto
opossum {n} (marsupial of the Didelphidae)  :: gambá {m}, cuíca {f}
opponent {n} (rival)  :: oponente {m} {f}, rival {m} {f}, adversário {m}
opportune {adj} (at a convenient time)  :: oportuno {m}
opportune {adj} (suitable)  :: adequado {m}, apropriado {m}, conveniente {m} {f}
opportunism {n} (the taking of opportunities)  :: oportunismo {m}
opportunist {n} (someone who takes advantage of any opportunity)  :: oportunista {m} {f}
opportunity {n} (chance for advancement, progress or profit)  :: oportunidade {f}
opportunity {n} (favorable circumstance or occasion)  :: oportunidade {f}
oppose {v} (to attempt to stop the progression of)  :: opor
oppose {v} (to object to)  :: opor
opposite {adj} (facing the other way)  :: oposto
opposite {adj} (located directly across from)  :: oposto
opposite {adj} (of complementary or mutually exclusive things)  :: oposto
opposite {adv} (in an opposite position)  :: oposto
opposite {n} (antonym)  :: antónimo {m} [Portugal], antônimo {m} [Brazil]
opposite {n} (contrary thing)  :: oposto {m}, contrário {m}
opposite {n} (opponent)  :: oponente {m} {f}
opposite {prep} (across from)  :: na frente de
opposites attract {proverb} (proverb)  :: os opostos se atraem
opposite sex {n} (the other gender to which one is referring)  :: sexo oposto {m}
opposition {n} (action)  :: oposição {f}
opposition {n} (political)  :: oposição {f}
oppress {v} (keep down by force)  :: oprimir
oppression {n} (act of oppressing, or the state of being oppressed)  :: opressão
oppressive {adj} (tyrannical or exercising unjust power)  :: opressivo, opressor, oprimente
oppressor {n} (oppressor)  :: opressor {m}
op shop {n} (thrift shop) SEE: thrift shop  ::
opt {v} (to choose)  :: optar
optic {adj} (of or relating to optics or optical instruments)  :: óptico, ótico [Brazil]
optic {adj} (of or relating to the eye or to vision)  :: óptico, ótico [Brazil]
optical {adj} (relating to optics) SEE: optic  ::
optical {adj} (relating to sight) SEE: optic  ::
optical fibre {n} (fibre used for transmitting light)  :: fibra ótica {f}
optic chiasm {n} (part of the brain)  :: quiasma óptico {m}
optician {n} (a person who makes or sells lenses, spectacles)  :: oculista {m} {f}
optic nerve {n} (nerve)  :: nervo óptico {m}, nervo ótico {m}
optics {n} (physics of light and vision)  :: óptica
optimal {adj} (the best)  :: ótimo {m} [Brazil], óptimo {m} [Portugal]
optimism {n} (a tendency to expect the best)  :: otimismo {m}
optimism {n} (the belief that good will eventually triumph over evil)  :: otimismo {m}
optimism {n} (the doctrine that this world is the best of all possible worlds)  :: otimismo {m}
optimist {n} (a believer in optimism)  :: otimista {m-f}
optimist {n} (a person who expects a favourable outcome)  :: otimista {m-f}
optimistic {adj} (expecting a good outcome)  :: otimista {m} {f}
optimization {n} (the design and operation of a system or process to make it as good as possible in some defined sense)  :: otimização {f}
optimize {v}  :: otimizar
optimize {v} (to make (something) optimal)  :: otimizar
option {n} (one of the choices which can be made)  :: opção
optional {adj} (not compulsory)  :: opcional, facultativo
option button {n} (radio button) SEE: radio button  ::
optoelectronic {adj} (pertaining to optoelectronics)  :: optoeletrônico
optoelectronic {adj} (that has both optical and electronic components)  :: optoeletrônico
optometrist {n} (person trained in examining and testing the eyes for defects)  :: oculista {m} {f}
optronic {adj} (optoelectronic) SEE: optoelectronic  ::
optronics {n} (optoelectronics) SEE: optoelectronics  ::
or {adj} (of yellow or gold tincture on a coat of arms)  :: ouro
or {conj} (conjunction)  :: ou
or {n} (gold or yellow tincture)  :: ouro {m}
orach {n} (saltbush) SEE: saltbush  ::
oracle {n} (person who is a source of wisdom)  :: oráculo {m}
oracle {n} (priest through whom deity provides prophecy or advice)  :: oráculo {m}
oracle {n} (prophetic response)  :: oráculo {m}
oracle {n} (shrine to prophetic deity)  :: oráculo {m}
oracular {adj} (of or relating to an oracle)  :: oracular
oracular {adj} (prophetic, foretelling the future)  :: oracular
oral {adj} (relating to the mouth)  :: oral
oral history {n} (oral tradition) SEE: oral tradition  ::
oralisation {n} (oralization) SEE: oralization  ::
oralise {v} (oralize) SEE: oralize  ::
orality {n} (being oral)  :: oralidade {f}
oralization {n} (the act or an act of oralizing)  :: oralização {f}
oralize {v} (to turn something written into something oral)  :: oralizar
oral lore {n} (oral tradition) SEE: oral tradition  ::
oral sex {n} (stimulation of the genitals using the mouth)  :: sexo oral {m}
orange {adj} (having the colour of the fruit of an orange tree)  :: alaranjado, cor-de-laranja, laranja
orange {n} (colour)  :: alaranjado {m}, cor-de-laranja {f}, laranja {m}
orange {n} (fruit)  :: laranja {f}
orange {n} (tree)  :: laranjeira {f}
Orange {prop} (river in South Africa)  :: Orange {m}
orangeade {n} (orange-flavored soft drink)  :: laranjada {f}
orangeade {n} (soda water and orange juice)  :: laranjada {f}
orange blossom {n} (white flower of the orange tree)  :: flor de laranjeira {f}
Orange Free State {prop} (former province of South Africa)  :: Estado Livre de Orange {m}
Orange Free State {prop} (former republic in southern Africa)  :: Estado Livre de Orange {m}
orange juice {n} (juice of squeezed oranges)  :: suco/sumo de laranja {m}
orange peel {n} (the skin of an orange)  :: casca
orangish {adj} (relatively orange in color)  :: alaranjado
orangutan {n} (arboreal anthropoid ape)  :: orangotango {m}
orator {n} (someone who orates or delivers an oration)  :: orador {m}
oratorio {n} (a musical composition on a religious theme)  :: oratório {m}
oratory {n} (art of public speaking)  :: oratória {f}
oratory {n} (eloquence) SEE: eloquence  ::
orb {n} (circle) SEE: circle  ::
orb {n} (monarch's ceremonial sphere) SEE: globus cruciger  ::
orb {n} (orbit) SEE: orbit  ::
orb {n} (period of time marked off by the revolution of a heavenly body) SEE: year  ::
orb {n} (spherical body)  :: orbe {m}
orbit {n} (eye socket) SEE: eye socket  ::
orbit {n} (path of one object around another)  :: órbita {f}
orbit {v} (circle another object)  :: orbitar
orbital {adj} (Of or relating to an orbit)  :: orbital
orbital {adj} (Of or relating to the eye socket (eyehole))  :: orbital
orbital cavity {n} (eye socket) SEE: eye socket  ::
orbitational {adj} (orbital) SEE: orbital  ::
orc {n} (evil monstrous humanoid creature)  :: orc
orc {n} (Orcinus orca) SEE: orca  ::
orca {n} (Orcinus orca)  :: orca {f}
orchard {n} (land for cultivation of fruit or nut trees)  :: pomar {m}
orcharder {n} (orchardist) SEE: orchardist  ::
orchestra {n} (large group of musicians who play together on various instruments)  :: orquestra {f}
orchestra {n} (semicircular space in front of the stage used by the chorus in Ancient theatres)  :: orquestra {f}
orchestra {n} (the area in a theatre or concert hall where the musicians sit)  :: orquestra {f}
orchid {n} (plant)  :: orquídea {f}
orchidaceous {adj} (pertaining to orchids)  :: orquidáceo
orchidarium {n} (orchid garden)  :: orquidário {m}
ordeal {n} (a painful or trying experience)  :: calvário {m}
ordeal {n} (trial in which the accused was subjected to a dangerous test)  :: ordália {f}
order {n} (arrangement, disposition)  :: ordem {f}
order {n} (awarded decoration)  :: ordem {f}
order {n} (biology: taxonomical classification)  :: ordem {f}
order {n} (command)  :: ordem {f}
order {n} (good arrangement)  :: ordem {f}
order {n} (religious group)  :: ordem {f}
order {n} (request for some product or service)  :: encomenda {f}, pedido {m}
order {n} (society of knights)  :: ordem {f}
order {v} (to issue a command)  :: ordenar
order {v} (to request some product or service)  :: encomendar, pedir
order {v} (to set in (a good) order)  :: ordenar
order {v} (to set in (any) order)  :: ordenar
ordered field {n} (field satisfying the properties of trichotomy, transitivity and preservation of an inequality when the same element is added to both sides)  :: corpo ordenado {m}
ordered pair {n} (in set theory)  :: par ordenado {m}
order of magnitude {n} (class of scale)  :: ordem de grandeza {f}
ordinal {adj} (indicating position in a numerical sequence)  :: ordinal
ordinal direction {n} (intercardinal direction) SEE: intercardinal direction  ::
ordinal number {n} (grammar: word used to denote relative position in a sequence)  :: número ordinal {m}
ordinarily {adv} (in the usual manner)  :: ordinariamente
ordinarily {adv} (usually or as a general rule)  :: ordinariamente
ordinary {adj} (normal, routine)  :: ordinário {m}, normal
ordinary differential equation {n} (equation)  :: equação diferencial ordinária {f}
ordinate {n} (y coordinate)  :: ordenada {f}
ore {n} (rock that contains materials that can be economically extracted and processed)  :: minério {m}
oregano {n} (leaves used to flavour food)  :: orégano {m}, orégão {m}
oregano {n} (plant)  :: orégano {m}, orégão {m}
Oregon {prop} (northwestern state of the United States of America)  :: Oregon {m}, Oregão {m}
or else {phrase} (as an alternative)  :: senão, caso contrário
or else {phrase} (no matter what)  :: senão
Orenburg {prop} (city in Russia)  :: Oremburgo {f}
orfe {n} (Leuciscus idus) SEE: ide  ::
organ {n} (musical instrument)  :: órgão
organ {n} (official magazine, newsletter, or similar publication)  :: publicação oficial {f}
organ {n} (part of an organism)  :: órgão
organ donor {n} (person from whom an organ is removed)  :: doador de órgãos {m}
organelle {n} (a membrane bound compartment found within cells)  :: organela {f}
organ gun {n} (ribauldequin) SEE: ribauldequin  ::
organic {adj} (chemistry: relating to the compounds of carbon)  :: orgânico, orgânico
organic {adj} (of food and food products: grown without agrichemicals)  :: orgânico
organic {adj} (pertaining to an organ)  :: orgânico
organic {adj} (pertaining to, or derived from living organisms)  :: orgânico
organic {n} (organic compound) SEE: organic compound  ::
organic chemistry {n} (chemistry of carbon containing compounds)  :: química orgânica {f}
organic compound {n} (carbon containing covalent compound)  :: composto orgânico {m}
organigram {n} (representation of a structure or organization)  :: organograma {m}
organise {v} (organize) SEE: organize  ::
organised {adj} (organized) SEE: organized  ::
organism {n} (any complex thing with properties normally associated with living things.)  :: organismo {m}
organism {n} (living thing)  :: organismo {m}
organist {n} (musician who plays the organ)  :: organista {m} {f}
organizable {adj} (able to be organized)  :: organizável {m} {f}
organization {n} (group of people consciously cooperating)  :: organização {f}
organization {n} (group of people or other legal entities with an explicit purpose and written rules)  :: organização {f}
organization {n} (quality of being organized)  :: organização {f}
organization {n} (the way in which something is organized)  :: organização
organizational {adj} (organizational)  :: organizacional {m} {f}
organize {v} (to arrange in working order)  :: organizar
organized {adj} (characterised by efficient organization)  :: organizado
organized crime {n} (criminal organizations seen as a whole)  :: crime organizado {m}
organizer {n} (person arranging public events)  :: organizador {m}
organochlorine {n} (chlorine substituted organic compound)  :: organoclorado {m}
organoleptic {adj} (of or pertaining to sensory properties of a particular substance)  :: organoléptico
organomercury {adj} (of an organic compound, containing a carbon to mercury bond)  :: organomercúrico
orgasm {n} (orgasm) SEE: climax  ::
orgasm {n} (the peak of sexual pleasure)  :: orgasmo {m}
orgasmic {adj} (of or relating to orgasms)  :: orgástico {m}, orgástica {f}, orgásmico {m}, orgásmica {f}
orgulous {adj} (proud, haughty)  :: orgulhoso {m}
orgulous {adj} (threatening, dangerous)  :: ameaçador
orgy {n} (excessive activity)  :: orgia {f}
orgy {n} (sexual group activity)  :: orgia {f}
orient {v} (to familiarize with a situation or circumstance)  :: orientar
orient {v} (to set the focus of so as to relate or appeal to a certain group)  :: orientar
Orient {prop} (Countries of Asia)  :: Oriente {m}
Oriental {adj} (of or relating to the Orient or Asia, especially the Far East)  :: oriental
Oriental {n} (person)  :: oriental {m} {f}
Oriental Republic of Uruguay {prop} (official name of Uruguay)  :: República Oriental do Uruguai {f}
orientation {n} (introduction to a new environment)  :: orientação {f}
orientation {n} (position relative to compass bearings)  :: orientação {f}
orientation {n} (the act of orienting)  :: orientação {f}
orienteering {n} (racing across unfamiliar countryside using a map and compass)  :: orientação {f}
orifice {n} (mouth or aperture, as of a tube, pipe)  :: orifício {m}
orifice {n} (orifice (see anus etc. for specific body cavities)) SEE: hole  ::
origami {n} (the Japanese art of paper folding)  :: origâmi {m}
origin {n} (ancestry)  :: origem {f}
origin {n} (beginning of something)  :: origem {f}, começo {m}
origin {n} (point at which the axes of a coordinate system intersect)  :: origem {f}
origin {n} (source of a river, information, goods, etc.)  :: origem {f}, [de um rio] nascente {f}
original {adj} (first in a series)  :: original
original {adj} (fresh, different)  :: original
original {adj} (newly created)  :: original
original {adj} (relating to the origin or beginning)  :: original, originário
original {n} (archasm for an excentric) SEE: eccentric  ::
original {n} (object from which all later copies and variations are derived)  :: original {m}
originality {n} (something original)  :: originalidade {f}
originality {n} (the capacity to think independently or be inventive)  :: originalidade {f}
originality {n} (the quality of being original or novel)  :: originalidade {f}
original sin {n} (state of sinfulness in each human)  :: pecado original {m}
originate {v} (to give origin to, cause)  :: originar
originate {v} (to take first existence, have origin)  :: originar
Orinoco {prop} (river)  :: Orinoco {m}
oriole {n} (any of the various colourful passerine birds)  :: oriolo {m}
Orion {prop} (constellation)  :: Orion
Orion {prop} (in mythology)  :: Orion
Orion's Belt {prop} (bright asterism)  :: [Brazil] as Três Marias
Orissa {prop} (Odisha) SEE: Odisha  ::
Oristano {prop} (town)  :: Oristano
Oriya {prop} (language)  :: oriá {m}
Orkney Islands {prop} (group of islands)  :: Orcadas {f-p}, Orcades {f-p}, Órcadas {f-p}, Órcades {f-p}, Ilhas Orkney {f-p}
Orleans {prop} (a city in France)  :: Orleães {f}, Orleans {f}
ornament {n} (element of decoration)  :: ornamento {m}, ornato {m}
ornament {n} (musical flourish)  :: ornamento {m}
ornament {v} (to decorate)  :: ornamentar, ornar, decorar
ornamentation {n} (the act or process of decorating)  :: ornamentação {f}
ornate wolf {n} (Lycaon pictus) SEE: African hunting dog  ::
ornithologist {n} (expert in ornithology)  :: ornitólogo {m}
ornithology {n} (scientific study of birds)  :: ornitologia {f}
ornithophobia {n} (fear, dislike, or hate of birds)  :: ornitofobia {f}
ornithopter {n} (aircraft that flaps its wings)  :: ornitóptero {m}
orography {n} (the scientific study, or a physical description of mountains)  :: orografia {f}
orology {n} (the study of mountains)  :: orologia {f}
orphan {n} (person whose (parent or) parents have died)  :: órfão {m}, órfã {f}
orphanage {n} (a public institution for the care and protection of orphans)  :: orfanato {m}
orphanarium {n} (orphanage) SEE: orphanage  ::
orphan drug {n}  :: medicamento órfão
Orpheus {prop} (the musician who searched for Eurydice)  :: Orfeu {m}
orthoclase {n} (potassium aluminum silicate)  :: ortoclase
orthodontist {n} (orthodontic dentist)  :: ortodontista {m} {f}
orthodox {adj} (Adhering to established religious doctrine or tradition)  :: ortodoxo
orthodox {adj} (Adhering to whatever is traditional, customary, accepted)  :: ortodoxo
Orthodox {adj} (of Orthodox Judaism)  :: ortodoxo
Orthodox {adj} (of the Eastern Christian Orthodox church)  :: ortodoxo
Orthodox Church {n} (the Eastern body of Christendom)  :: Igreja Ortodoxa {f}
orthodoxy {n} (correctness in doctrine and belief)  :: ortodoxia
orthodoxy {n} (the beliefs and practices of the Eastern Orthodox Church) SEE: Orthodoxy  ::
Orthodoxy {prop} (the Eastern Orthodox Church and its foundations)  :: ortodoxia {f}
orthoepy {n} (the correct pronunciation of words)  :: ortoepia {f}, ortoépia {f}
orthoepy {n} (the study of correct pronunciation of words)  :: ortoepia {f}, ortoépia {f}
orthogonal {adj} (of right angles)  :: ortogonal, perpendicular
orthography {n} (aspect of language study)  :: ortografia {f}
orthography {n} (method of representing a language by written symbols)  :: ortografia {f}
orthography {n} (study of correct spelling)  :: ortografia {f}
orthologous {adj} (having been separated by a speciation event)  :: ortólogo
orthomolecular {adj} (relating to the theory that illness is the result of chemical deficiencies)  :: ortomolecular
orthopedia {n} (orthopedics) SEE: orthopedics  ::
orthopedic {adj} (Of or relating to orthopedics)  :: ortopédico
orthopedics {n} (medicine: a branch of medicine)  :: ortopedia {f}
orthopedist {n} (orthopedic surgeon)  :: ortopedista {m} {f}
orthorexia {n} (obsession with healthy food)  :: ortorexia
orthorhombic {adj} (having three unequal axes at right angles)  :: ortorrômbico
or words to that effect {phrase} (used to indicate a paraphrase)  :: ou algo assim
Oryol {prop} (a city in Russia)  :: Oriol {f}, Orel {f}
oryx {n} (antelope)  :: órix {m}
OS {n} (operating system)  :: SO
Osaka {prop} (Ōsaka, a city in Honshū, Japan)  :: Osaka {f}
Oscan {adj} (Of or pertaining to the Oscan language or Oscan people, or their writing system)  :: osco {m}
Oscan {n} (Person)  :: osco {m}
Oscan {prop} (Language)  :: osco {m}
Oscar {prop} (male given name)  :: Oscar {m}, Óscar {m}
oscillate {v} (to swing back and forth, especially if with a regular rhythm)  :: oscilar
oscillation {n} (the act of oscillating)  :: oscilação {f}
oscillator {n} (an electronic circuit used to generate a continuous output waveform)  :: oscilador {m}
oscilloscope {n} (electronic measuring instrument)  :: osciloscópio {m}
osculum {n} (main opening in a sponge)  :: ósculo {m}
osier {n} (plant)  :: vimeiro {m}
osier {n} (twig)  :: vime {m}
Osiris {prop} (Egyptian god of the dead and of the underworld)  :: Osíris {m}
-osis {suffix} (suffix for functional disorders)  :: -ose {f}
Oslo {prop} (the capital and a county municipality of Norway)  :: Oslo {f}
osmium {n} (chemical element)  :: ósmio {m}
osmometer {n} (measuring device)  :: osmómetro {m} [Portugal], osmômetro {m} [Brazil]
osmosis {n} (movement of molecules)  :: osmose
osmotic {adj} (of or relating to osmosis)  :: osmótico
osmotic pressure {n} (hydrostatic pressure)  :: pressão osmótica {f}
osprey {n} (bird of prey)  :: águia-pesqueira {f}
Osroene {prop} (ancient kingdom)  :: Osroene {f}
osseous {adj} (relating to bone)  :: ósseo
Ossetia {prop} (region in the Caucasus)  :: Ossétia {f}
Ossetian {adj} (pertaining to Ossetia)  :: osseta
Ossetian {n} (member of the people)  :: osseta {m-f}
Ossetian {prop} (language)  :: osseto {m}
ossicle {n} (small bone in the ear; auditory ossicle)  :: ossículo {m}
ossify {v} (to calcify) SEE: calcify  ::
osso buco {n} (Italian dish)  :: ossobuco {m}
ossuary {n} (a place where the dead are buried)  :: ossário {m}, ossuário {m}
ostensible {adj} (appearing as such; professed, supposed)  :: aparente, pretenso
ostensible {adj} (meant for open display; apparent)  :: aparente
ostensibly {adv} (ostensibly)  :: ostensivamente {f}
ostentatious {adj} (intended to attract notice)  :: ostentoso {m}
ostentatious {adj} (of ostentation)  :: ostentatório
ostentatious {adj} (of tawdry display)  :: espalhafatoso {m}
osteoarthritis {n} (form of arthritis caused by chronic degeneration of the cartilage and synovial membrane of the joints)  :: artrose {f}
osteogenesis {n} (the formation and development of bone)  :: osteogénese {f} [Portugal], osteogênese {f} [Brazil]
osteogenesis imperfecta {n} (disease characterized by bones that easily fracture)  :: osteogénese imperfeita {f} [Portugal], osteogênese imperfeita {f} [Brazil]
osteology {n} (bone structure of a particular individual or species)  :: ossatura
osteomalacia {n} (medicine: a softening of adult bones due to inadequate mineralization)  :: osteomalacia {f}
osteomyelitis {n} (pathology: an infection of the bone)  :: osteomielite {f}
osteopathy {n} (branch of therapy)  :: osteopatia {f}
osteopenia {n} (the medical condition of having low bone density, but not low enough to be considered osteoporosis)  :: osteopenia
osteoporosis {n} (bone disease)  :: osteoporose {f}
ostracism {n} (banishment, exclusion from community)  :: ostracismo {m}
ostracism {n} (in ancient Greece, the temporary banishment by popular vote)  :: ostracismo {m}
ostracize {v} (exclude someone)  :: ostracizar, excluir
ostracize {v} (to ban a person from Athens for ten years)  :: ostracizar
Ostrava {prop} (city in the Czech Republic)  :: Ostrava {f}
ostrich {n} (large flightless bird)  :: avestruz
Ostrogoth {n} (member of a tribe of Eastern Goths)  :: ostrogodo {m}
Oswald {prop} (male given name)  :: Osvaldo {m}
otaku {n} (one with an obsessive interest in something such as anime or manga)  :: otaku {m} {f}
otalgia {n} (earache) SEE: earache  ::
other {adj} (not the one previously referred to)  :: outro, outra {f}
other {adv} (apart from)  :: fora
other {determiner} (not the one referred to)  :: outro
other {n} (an other one)  :: outro {m}, outra {f}
other days, other ways {proverb} (other days, other ways)  :: mudam-se os tempos, mudam-se os costumes
others {n} (other people)  :: (os) outros
other side {n} (afterlife) SEE: afterlife  ::
otherwise {adj} (other than supposed)  :: contrário, em contrário
otherwise {adv} (differently, in another way)  :: diferente, diferentemente, de outra forma/maneira, de outro jeito/modo
otherwise {adv} (in all other respects)  :: fora isso, no mais
otherwise {adv} (or else) SEE: or else  ::
otherwise {adv} (under different circumstances)  :: senão
otic {adj} (related to the ear)  :: ótico
otitis {n} (inflammation of the ear)  :: otite {f}
otolaryngological {adj} (otorhinolaryngological) SEE: otorhinolaryngological  ::
otolaryngologist {n} (otorhinolaryngologist) SEE: otorhinolaryngologist  ::
otolaryngology {n} (medical study of the ear, nose and throat)  :: otorrinolaringologia {f}
otology {n} (the branch of medicine that deals with the ear)  :: otologia {f}
otorhinolaryngologist {n} (medical doctor of ear, nose and throat)  :: otorrinolaringologista {m} {f}
otorhinolaryngologist {n} (speech-language pathologists) SEE: orthophoniste  ::
otorhinolaryngology {n} (otolaryngology) SEE: otolaryngology  ::
Ottawa {prop} (capital of Canada)  :: Otava {f}, Ottawa {f}
otter {n} (mammal)  :: lontra
Otto {prop} (male given name)  :: Oto {m}, Otto {m}
Ottoman {adj} (of the Islamic empire of Turkey)  :: otomano
Ottoman {n} (Turk from the period of Ottoman Empire)  :: otomano {m}
Ottoman Empire {prop} (Ottoman Empire)  :: Império Otomano {m}
Ottoman Turkish {prop} (the variety of the Turkish language that was used as the administrative and literary language of the Ottoman Empire)  :: turco otomano {m}
Ouagadougou {prop} (capital of Burkina Faso)  :: Ouagadougou
ouch {interj} (expression of one's own physical pain)  :: ai, au
ouchie {n} (owie) SEE: owie  ::
oud {n} (Arabic plucked string instrument)  :: ud
ought {v} (indicating advisability or prudence)  :: dever
ought {v} (indicating desirability)  :: dever
ought {v} (indicating duty or obligation)  :: dever
ought {v} (indicating likelihood or probability)  :: dever
Ouija {n} (a board with letters of the alphabet and "yes" and "no")  :: ouija, tabuleiro ouija
ounce {n} (28.3495 g)  :: onça {f}
our {determiner} (belonging to us)  :: nosso
Our Lady {prop} (Virgin Mary)  :: Nossa Senhora {f}
Our Lady of Sorrows {prop} (Virgin Mary)  :: Nossa Senhora das Dores, Nossa Senhora da Piedade, Nossa Senhora da Soledade, Nossa Senhora das Angústias, Nossa Senhora das Lágrimas, Nossa Senhora das Sete Dores, Nossa Senhora do Calvário, Nossa Senhora do Pranto
ouroboros {n} (a serpent, dragon or worm who eats its own tail)  :: uróboro {m}
Ouro Preto {prop} (city in Brazil)  :: Ouro Preto {f}
ours {pron} (that which belongs to us)  :: o nosso {m}
ourselves {pron} (emphatic: we)  :: nós mesmos
ourselves {pron} (reflexive: us)  :: nos, nós
-ous {suffix} (suffix to form adjectives)  :: -oso
oust {v} (to expel; to remove)  :: retirar, expulsar
out {adv} (away from, at a distance)  :: longe
out {adv} (away from one's usual place or not indoors)  :: fora
out {prep} (away from the inside)  :: para fora
outbid {v} (To bid more than somebody else)  :: fazer um lance maior que outros participantes, em leilão, concorrência ou licitação
outboard {n} (outboard motor) SEE: outboard motor  ::
outbuilding {n} (separate building associated with a main building)  :: dependência {f}
outcast {n} (one that has been excluded from a society or system a pariah)  :: deslocado {m}, excluído {m}, pária {m}
outcome {n} (result)  :: resultado {m}
outdated {adj} (out of date, old-fashioned, antiquated)  :: obsoleto, ultrapassado
outdo {v} (to go beyond)  :: superar
outdoor {adj} (situated in the open air)  :: ao ar livre
outdoors {adv} (in the open air)  :: ao ar livre, a céu aberto
outer {adj} (outside)  :: externo
Outer Mongolia {prop} (East Asian region)  :: Mongólia Exterior {f}
outer space {n} (region)  :: espaço sideral {m}
outfit {v} (to provide with)  :: equipar
outfox {v} (outsmart) SEE: outsmart  ::
outgoing {adj} (being comfortable in social settings and interactions)  :: extrovertido
outguess {v} (outsmart) SEE: outsmart  ::
outhouse {n}  :: banheiro {m}
outhouse {n} (outbuilding) SEE: outbuilding  ::
outhouse {n} (outdoor toilet, see also: shithouse; latrine; toilet)  :: casinha {f}
outing {n} (excursion) SEE: excursion  ::
outlast {v} (to live longer than)  :: prevalecer
outlaw {n} (a fugitive from the law)  :: fora-de-lei {m} {f}
outlet {n} (vent)  :: ventilação
outlet {n} (wall-mounted socket)  :: tomada {f}
outlier {n} (a person or thing situated away from the main body or outside its proper place.)  :: extravagante
outline {n} (general description of some subject)  :: resumo {m}
outline {n} (line marking the boundary of an object figure)  :: contorno {m}
outline {n} (outer shape of an object or figure)  :: contorno {m}
outline {n} (statement summarizing the important points of a text)  :: resumo {m}
outlook {n} (attitude, point of view)  :: ponto de vista {m}
outlook {n} (place from which something can be viewed)  :: perspectiva {f}
out loud {adv} (aloud)  :: em voz alta
outmoded {adj} (obsolete)  :: demodê {mf}, antiquado {m}, ultrapassado {m}
outmoded {adj} (unfashionable)  :: demodê {mf}
outnumber {v} (be more in number)  :: exceder em número [literally], disparidade
out of {prep} (from the inside to the outside of)  :: para fora
out of {prep} (not part of)  :: fora
out of {prep} (with the motivation of)  :: de
out of breath {prep} (breathing with difficulty)  :: ofegante
out of hand {adj} (not under control, out of control)  :: fora de controle
out of nowhere {prep} (unexpectedly or unexplicably)  :: do nada, da cartola
out of sight, out of mind {proverb} (something not nearby is forgotten)  :: longe dos olhos, longe do coração, o que os olhos não veem o coração não sente
out of the blue {adv} (unexpectedly)  :: do nada (out of nowhere), da cartola (out of the top hat), à toa
out of the frying pan, into the fire {proverb} (get from an already bad situation to a worse one)  :: da frigideira para o fogo
out of the ordinary {prep} (unusual; not ordinary)  :: fora do comum, fora do normal
out of thin air {adv} (from non-existent resource)  :: do nada
out of tune {adj} (not in correct musical pitch)  :: desafinado
out of work {adj} (unemployed) SEE: unemployed  ::
outpatient {n} (patient)  :: paciente ambulatorial {m-f}
outpost {n} (A military post)  :: posto avançado {m}
output {n} (data sent out of the computer)  :: saída (de dados/informação) {f}
output {n} (production; quantity produced, created, or completed)  :: produção {f}
outrage {n} (anger)  :: raiva {f}
outrage {n} (atrocity)  :: atrocidade {f}
outrage {n} (offensive, immoral or indecent act)  :: ultraje {m}
outreach {n} (act of reaching out to another)  :: extensão {f}
outreach {n} (extent or length)  :: extensão {f}
outreach {n} (practice of visiting and providing services of an organisation to people)  :: extensão {f}
outreach {v} (reach out)  :: alcançar
outright {adv} (openly)  :: abertamente
outright {adv} (wholly)  :: completamente
outset {n} (initial stage of something)  :: início {m}
outside {adj} (pertaining to beyond the outer boundary)  :: externo
outside {adj} (pertaining to the outer surface or boundary)  :: exterior, externo
outside {adv} (on or towards the outside)  :: fora, para fora
outside {adv} (outdoors)  :: fora
outside {n} (outer surface)  :: exterior
outside {n} (the space beyond some limit or boundary)  :: exterior, lado de fora {m}
outside {prep} (on the outside of)  :: fora de
outsider {n} (someone excluded)  :: marginal, forasteiro {m}
outside the box {prep} (beyond convention)  :: fora da caixa
outskirt {n} (periphery)  :: periferia
outskirts {n} (the edges or areas around a city or town)  :: periferia {f} [Brazil]
outsmart {v} (to beat in a competition of wits)  :: ser mais esperto que
outsource {v} (transfer of business to a third party)  :: terceirizar
outsourcing {n} (transfer business)  :: terceirização {f}, outsourcing {m}
outstanding {adj} (distinguished from others by its superiority)  :: excepcional, extraordinário, destacado
outstanding {adj} (not settled or finished)  :: pendente
outstanding {adj} (owed as a debt)  :: pendente
outstanding {adj} (projecting outwards)  :: destacado, saliente
outstanding {adj} (standing out from others)  :: excepcional, extraordinário, destacado
outwit {v} (outsmart) SEE: outsmart  ::
oval {adj} (of or pertaining to an ovum)  :: ovular
oval {adj} (oval-shaped)  :: oval, ovoide, ovalado
oval {n} (shape like an egg or ellipse)  :: ovoide {m}
ovarian {adj} (Relating to the ovaries)  :: ovárico
ovary {n} (botanical organ)  :: ovário {m}
ovary {n} (female organ)  :: ovário {m}
ovate {adj} (egg-shaped) SEE: egg-shaped  ::
oven {n} (chamber used for baking or heating)  :: forno {m}
oven glove {n} (glove designed to carry hot oven trays)  :: luva de cozinha {f}, luva de forno {f}
oven mitt {n} (oven glove) SEE: oven glove  ::
over {adj} (ended)  :: terminado, acabado, concluído
over {adv} (again)  :: de novo
over {interj} (end of sentence in radio communication)  :: câmbio
over- {prefix} (above or higher)  :: sobre-, super-
over- {prefix} (excessively)  :: sobre-, super-
over- {prefix} (superior)  :: sobre-, super-
over {prep} (math: divided by)  :: por
over {prep} (physical positioning: across or spanning)  :: sobre
over {prep} (physical positioning: in such a way as to cover)  :: sobre
over {prep} (physical positioning: on top of; above)  :: sobre
overact {v} (act in an exaggerated manner)  :: exagerar
overall {adj} (all-encompassing)  :: abrangente, geral
overall {adv} (generally)  :: em geral
overall {n} (protective garment worn over clothing)  :: macacão
overalls {n} (loose fitting pair of pants with a bib)  :: macacão
over and over {adv} (repeatedly)  :: várias e várias vezes
overarching {adj} (all-embracing)  :: onipresente
overboard {adv} (over the edge, off a boat)  :: borda a fora, exceder
overcast {adj} (covered with clouds; overshadowed; darkened)  :: nublado
overcast {adj} (meteorological term)  :: encoberto
overcast {v} (to cover with cloud; to overshadow; to darken)  :: nublar
overcoat {n} (garment)  :: sobretudo {m}
overcome {v} (surmount, get the better of)  :: vencer, superar, ultrapassar
overcrowded {adj} (Containing too many occupants)  :: lotado
overdo {v} (to do too much of something)  :: exagerar
overdose {n} (excessive and dangerous dose of a drug)  :: overdose {f}, superdose {f}, overdose {f}
overdraft {n} (act of overdrawing a bank account)  :: saque a descoberto {m}
overdraught {n} (overdraft) SEE: overdraft  ::
overdue abortion {n} (missed abortion) SEE: missed abortion  ::
overeat {v} (eat too much)  :: empachar
overestimate {v} (to judge too highly)  :: superestimar, sobrestimar, sobre-estimar
overestimated {v} (overrated) SEE: overrated  ::
overflow {n} (computing: situation where a value exceeds the available range)  :: overflow {m}, transbordamento {m}
overflow {n} (outlet)  :: ladrão {m}
overflow {n} (spillage)  :: transbordo {m}, transbordamento {m}
overflow {v} (to fill beyond the limits of)  :: transbordar
overhaul {n} (a major repair, remake, renovation, or revision)  :: reestruturação {f}
overhead {n} (expense of a business not directly assigned to goods or services provided)  :: overhead {m}
overhead fan {n} (ceiling fan) SEE: ceiling fan  ::
overhead projector {n} (projector that projects an image over the heads of the viewers onto a screen)  :: retroprojetor {m}
overhear {v} (To hear something that wasn't meant for one's ears)  :: ouvir/escutar por acaso/sem querer
overheat {v} (overheat) SEE: burn  ::
overheat {v} (to become excessively hot)  :: rescaldar, sobreaquecer
overheat {v} (to heat excessively)  :: sobreaquecer
over here {adv} (in this place)  :: aqui,
Overijssel {prop} (province of the Netherlands)  :: Overijssel {m}
overlap {v} (have DNA parts in common)  :: sobrepor-se
overlap {v} (to extend over and partly cover something)  :: sobrepor, cobrir
overlapping {adj} (pertaining to things which overlap)  :: superposto, sobreposto
overlapping {n} (the situation in which things overlap)  :: sobreposição {f}
overlay {v} (overwhelm) SEE: overwhelm  ::
overload {v} (to load excessively)  :: sobrecarregar
overlook {n} (vista or point)  :: vista {f}, mirante {m}
overlook {v} (to fail to notice; to look over and beyond (anything) without seeing it)  :: desperceber
overlook {v} (to pretend not to have noticed; to pass over without censure or punishment)  :: deixar passar
overly {adv} (to an excessive degree)  :: exagerada {f}
overmatch {n} (a match)  :: batalha {f} perdida
overmorrow {adv} (on the day after tomorrow) SEE: day after tomorrow  ::
overmorrow {n} (day after tomorrow) SEE: day after tomorrow  ::
over my dead body {prep} (absolutely not)  :: só por cima do meu cadáver, sobre o meu cadáver
overnight {adj} (during a single night)  :: noturno
overnight {adv} (during a single night)  :: em uma noite
overnight {adv} (in a very short amount of time)  :: de um dia para o outro
overnight {adv} (throughout the night)  :: durante a noite
overnight {n} (overnight stay)  :: pernoite {m}, pernoitada {f}, pernoita {f}, pernoitamento {m}
overnight {v} (stay overnight)  :: pernoitar
overnourished {adj} (overweight) SEE: overweight  ::
overpass {n} (A section of a road or path that crosses over an obstacle, especially another road, railway, etc)  :: viaduto {m}
overpopulation {n} (when the number of occupants of an area exceeds the ability of that area to provide for the occupants)  :: superpopulação {f}
overpower {v} (overpower) SEE: compel  ::
overrate {v} (to esteem too highly)  :: sobrestimar, superestimar
overrated {adj} (rated too highly)  :: sobrestimado
override {v} ((software) To define a new behaviour of a method)  :: sobrepor
override {v} (to counteract the normal operation of something)  :: sobrepor
overrun {v} (to infest, swarm over)  :: infestar
overseas {adj} (abroad)  :: do exterior
overseas {adj} (across a sea)  :: ultramarino
overseas {adv} (abroad)  :: no exterior
oversee {v} (to see secretly or unintentionally)  :: vigiar
oversee {v} (to supervise, guide, review or direct the actions of a person or group)  :: supervisionar
oversee {v} (to survey, look at something in a wide angle)  :: sondar
overseer {n} (one who oversees)  :: feitor
oversight {n} (omission)  :: descuido {m}
oversight {n} (supervision)  :: superintendência {f}, chefia {f}, monitoração, acompanhamento, supervisão
oversleep {v} (to sleep for longer than planned)  :: dormir demais
overtake {v} (to pass a more slowly moving object)  :: ultrapassar
over there {adv} (in that place)  :: , ali
over the top {adj} (beyond normal, expected, or reasonable limits; excessive; exaggerated)  :: acima do limite (normal), excessivo, exagerado
overthrow {v} (bring about downfall)  :: derrocar, derrubar
overtime {n} (pay for overtime work)  :: hora extra {f}
overtime {n} (worktime)  :: hora extra {f}
overtly {adv} (openly)  :: abertamente, declaradamente
overtrump {v} (To play a higher trump card) SEE: overruff  ::
overture {n} (musical introduction)  :: abertura {f}
overturn {v} (legal: to reverse, overrule)  :: anular, derrubar
overturn {v} (to turn over, capsize)  :: capotar
overview {n} (brief summary, as of a book or a presentation)  :: visão geral {f}, breve resumo {m}
overweight {adj} (of a person, heavier than is healthy)  :: com excesso de peso
overwhelm {v} (engulf, surge-over)  :: engolir
overwhelm {v} (overpower emotionally)  :: dominar
overwhelm {v} (to overpower, crush)  :: dominar, esmagar, avassalar
overwhelming {adj} (overpowering)  :: irresistivelmente forte, exageradamente maior, esmagador, avassalador
oviduct {n} (duct through which an ovum passes)  :: oviduto {m}
Oviedo {prop} (town in Spain)  :: Oviedo
oviform {adj} (egg-shaped) SEE: egg-shaped  ::
ovoid {adj} (egg-shaped) SEE: egg-shaped  ::
ovulation {n} (release of an ovum from the ovary)  :: ovulação {f}
ovum {n} (gamete)  :: óvulo
owe {v} (to be in debt)  :: dever
owe {v} (to be under an obligation)  :: dever
owie {n} (minor injury)  :: dodói
owing to {prep} (because of)  :: devido a
owl {n} (a bird)  :: coruja {f}, estrige {f}
owlish {adj} (resembling or characteristic of an owl)  :: corujento
own {adj} (belonging to (determiner))  :: próprio
own {v} (defeat) SEE: defeat  ::
own {v} (have rightful possession of)  :: possuir
owner {n} (one who owns)  :: proprietário {m}, dono {m}
ownership {n} (legal status)  :: propriedade
own goal {n} (goal scored by player against their own team)  :: gol contra {m}
own up {v} (to confess)  :: confessar, assumir, confessar que, admitir
ox {n} (an adult castrated male of cattle)  :: boi {m}
ox {n} (any bovine animal used as a beast of burden)  :: boi {m}
oxalic acid {n} (the dicarboxylic acid (ethandioic acid))  :: ácido oxálico {m}
oxbow lake {n} (crescent-shaped lake)  :: braço morto
Oxford {prop} (city)  :: Oxford {f}, Oxónia {f} [Portugal], Oxônia [Brazil]
Oxford {prop} (university)  :: Oxford {f}
oxidanium {n} (hydronium) SEE: hydronium  ::
oxidation {n} (chemical reaction)  :: oxidação {f}
oxidation {n} (combination of a substance with oxygen)  :: oxidação
oxidative {adj} (Relating to oxidation)  :: oxidativo
oxide {n} (binary compound of oxygen)  :: óxido {m}
oxidization {n} (oxidation) SEE: oxidation  ::
oxidize {v} (to become oxidized)  :: oxidar
oxidize {v} (to coat something with an oxide)  :: oxidar
oxidize {v} (to combine with oxygen)  :: oxidar
oxidize {v} (to increase the valence)  :: oxidar
oxyacid {n} (an acid containing oxygen)  :: oxiácido {m}
oxygen {n} (chemical element)  :: oxigénio {m} [Portugal], oxigênio {m} [Brazil]
oxygenation {n} (process of treating something with oxygen)  :: oxigenação {f}
oxygen cylinder {n} (gas cylinder containing oxygen)  :: cilindro de oxigênio {m}
oxygen tank {n} (cyllinder holding oxygen)  :: tanque de oxigênio
oxymoron {n} (contradiction in terms) SEE: contradiction in terms  ::
oxymoron {n} (figure of speech)  :: oxímoro {m}
oxytone {adj} (oxytone)  :: oxítono
oxytone {n} (word with the stress or an acute accent on the last syllable)  :: oxítona {f}
oyster {n} (food)  :: marisco {m}
oyster {n} (mollusk, see also: clam; mollusc; mussel)  :: ostra {f}
oystercatcher {n} (bird)  :: ostraceiro {m}
oysterman {n} (person who cultivates, harvests or sells oysters)  :: ostricultor {m}, ostreicultor {m} ostreiro {m}
oyster sauce {n} (sauce from oysters)  :: molho de ostras/ostra {m}
ozone {n} (O3)  :: [Brazil] ozônio {m}, [Portugal] ozono {m}
ozone layer {n} (a region of the stratosphere)  :: [Brazil] camada de ozônio {f}, [Portugal] camada de ozono {f}
Øresund {prop} (strait) SEE: Oresund  ::