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Formerly unite, a later form of unity; see unity.



unit (plural units)

  1. (sciences) A standard measure of a quantity.
    The centimetre is a unit of length.
  2. The number one.
  3. Short form of international unit
    This pill provides 500 units of Vitamin E.
  4. An organized group comprising people and/or equipment.
    He was a member of a special police unit.
  5. (military, informal) A member of a military organization.
    The fifth tank brigade moved in with 20 units. (i.e., 20 tanks)
  6. (US, military) Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organization[1].
  7. (US, military) An organization title of a subdivision of a group in a task force[1].
  8. (US, military) A standard or basic quantity into which an item of supply is divided, issued, or used. In this meaning, also called unit of issue[1].
  9. (US, military) With regard to Reserve Components of the Armed Forces, denotes a Selected Reserve unit organized, equipped, and trained for mobilization to serve on active duty as a unit or to augment or be augmented by another unit. Headquarters and support functions without wartime missions are not considered units[1].
  10. (algebra) An element of a ring having a multiplicative inverse. (Formerly just the identity element 1R of a ring.)
  11. (geology) A volume of rock or ice of identifiable origin and age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.
  12. (commerce) An item which may be sold singly.
    We shipped nearly twice as many units this month as last month.
  13. (UK, electricity) One kilowatt-hour (as recorded on an electricity meter).
  14. (Australia, New Zealand) a measure of housing equivalent to the living quarters of one household, an apartment where a group of apartments is contained in one or more multi-storied buildings or a group of dwellings is in one or more single storey buildings, usually arranged around a driveway.
  15. (historical) A gold coin of the reign of James I, worth twenty shillings.
    (Can we find and add a quotation of Camden to this entry?)



The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.


unit (not comparable)

  1. For each unit.
    We have to keep our unit costs down if we want to make a profit.
  2. (mathematics) Having a size or magnitude of one.
    • 1990, William W. S. Wei, Time Series Analysis, ISBN 0201159112, page 9:
      Consider the following time sequence
      Z_t=A\sin(\omega t+\theta),
      where A is a random variable with a zero mean and a unit variance and \theta is a random variable with a uniform distribution on the interval [-\pi,\pi] independent of A.


Derived terms[edit]


  1. 1.0 1.1 1.2 1.3 Joint Publication 1-02 U.S. Department of Defense Dictionary of Military and Associated Terms; 12 April 2001 (As Amended Through 14 April 2006).

External links[edit]




unit m (feminine unida, masculine plural units, feminine plural unides)

  1. past participle of unir





  1. third-person singular present indicative of unir
  2. third-person singular past historic of unir





  1. third-person singular present active indicative of ūniō





  1. past participle of uni


See also neunit