Wiktionary:Main Page

Wiktionary, the free dictionary

7,628,986 entries with English definitions from over 4,300 languages

Browse: All languages • List of topics • Random word • New entries

Appendices • Abbreviations • Thesaurus • Rhymes • Frequency lists • Phrasebooks

Welcome to the English-language Wiktionary, a collaborative project to produce a free-content multilingual dictionary. It aims to describe all words of all languages using definitions and descriptions in English.

Wiktionary has grown beyond a standard dictionary and now includes a thesaurus, a rhyme guide, phrase books, language statistics and extensive appendices. We aim to include not only the definition of a word, but also enough information to really understand it. Thus etymologies, pronunciations, sample quotations, synonyms, antonyms and translations are included.

Wiktionary is a wiki, which means that you can edit it, and all the content is dual-licensed under both the Creative Commons Attribution-ShareAlike 3.0 Unported License and the GNU Free Documentation License. Before you contribute, you may wish to read through some of our help pages, and bear in mind that we do things quite differently from other wikis. In particular, we have strict layout conventions and inclusion criteria. Learn how to start a page, how to edit entries, experiment in the sandbox and visit our Community Portal to see how you can participate in the development of Wiktionary.

edit · refresh · view Word of the day for November 29
precipitant adj
Inclined to make rapid decisions without due consideration; hasty, impulsive, rash. Of a fall: straight downwards; headlong. (chiefly figurative) Acting, happening, or moving quickly; fast, rapid, swift; also, abrupt, sudden, unexpected. (chemistry) That causes precipitation (“formation of a heavier solid in a lighter liquid as a result of a chemical reaction”). precipitant adv (archaic) Synonym of precipitantly (“in a precipitant or headlong manner; with foolish or rash haste”) precipitant n Something which causes or hastens the occurrence of an act or event; specifically (chiefly psychology), something which brings about a mental or physiological condition. (chemistry) A substance that, when added to a solution, causes a dissolved substance to form a precipitate.
← yesterday \| About Word of the Day • Nominate a word • Leave feedback \| tomorrow →

Foreign word of the day in Kashubian
żôłniérz noun soldier dragonfly (insect of the suborder Epiprocta)
About Foreign Word of the Day • Archive • Nominate a word • Leave feedback

Behind the scenes

Community portal

A page containing everything you wanted to know about Wiktionary.

Discussion rooms

A collection of pages for the discussion of Wiktionary and the words it contains.

Things to do • Help • Guidelines

Wiktionaries in other languages

This is the English-language Wiktionary, where words from all languages are defined in English. For example, see the entry for the French word dictionnaire. To find a French definition of that word, visit the equivalent page in the French Wiktionary.

1,000,000+ entries: 中文 (Chinese) • Français (French) • Deutsch (German) • Ελληνικά (Greek) • Malagasy • Русский (Russian)

100,000+: Հայերեն (Armenian) • Català (Catalan) • Čeština (Czech) • Nederlands (Dutch) • Suomi (Finnish) • Español (Spanish) • Esperanto • Eesti (Estonian) • हिन्दी (Hindi) • Magyar (Hungarian) • Ido • Bahasa Indonesia (Indonesian) • Italiano (Italian) • 日本語 (Japanese) • ಕನ್ನಡ (Kannada) • 한국어 (Korean) • Kurdî / كوردی (Kurdish) • Limburgs (Limburgish) • Lietuvių (Lithuanian) • മലയാളം (Malayalam) • မြန်မာဘာသာ (Burmese) • Norsk Bokmål (Norwegian) • ଓଡ଼ିଆ (Odia) • فارسى (Persian) • Polski (Polish) • Português (Portuguese) • Română (Romanian) • Srpskohrvatski (Serbo-Croatian) • Svenska (Swedish) • தமிழ் (Tamil) • తెలుగు (Telugu) • ไทย (Thai) • Türkçe (Turkish) • Tiếng Việt (Vietnamese) • Oʻzbekcha / Ўзбекча (Uzbek)

10,000+: Afrikaans • Shqip (Albanian) • العربية (Arabic) • Asturianu (Asturian) • Azərbaycan (Azeri) • Bahasa Melayu (Malay) • Euskara (Basque) • বাংলা (Bengali) • Brezhoneg (Breton) • Български (Bulgarian) • Hrvatski (Croatian) • Dansk (Danish) • Frysk (West Frisian) • Galego (Galician) • ქართული (Georgian) • עברית (Hebrew) • Íslenska (Icelandic) • Basa Jawa (Javanese) • Кыргызча (Kyrgyz) • ລາວ (Lao) • Latina (Latin) • Latviešu (Latvian) • Lombard • Bân-lâm-gú (Min Nan) • ဘာသာမန် (Mon) • Nynorsk (Norwegian) • Occitan • Oromoo (Oromo) • پښتو (Pashto) • ਪੰਜਾਬੀ (Punjabi) • Српски (Serbian) • လိၵ်ႈတႆ (Shan) • Sicilianu (Sicilian) • Simple English • Slovenčina (Slovak) • Kiswahili (Swahili) • Tagalog • Тоҷикӣ (Tajik) • Українська (Ukrainian) • اردو (Urdu) • Volapük • Walon (Walloon) • Cymraeg (Welsh)

1,000+: Armãneashce (Aromanian) • Aymara • Беларуская (Belarusian) • Bosanski (Bosnian) • Bikol • Corsu (Corsican) • Føroyskt (Faroese) • Fiji Hindi • Kalaallisut (Greenlandic) • Avañe'ẽ (Guaraní) • Interlingua • Interlingue • Gaeilge (Irish) • كٲشُر (Kashmiri) • Kaszëbsczi (Kashubian) • қазақша (Kazakh) • ភាសាខ្មែរ (Khmer) • Кыргызча (Kyrgyz) • Lëtzebuergesch (Luxembourgish) • Māori • Plattdüütsch (Low Saxon) • Македонски (Macedonian) • Malti (Maltese) • मराठी (Marathi) • Nahuatl • नेपाली (Nepali) • Li Niha (Nias) • Ænglisc (Old English) • Gàidhlig (Scottish Gaelic) • Tacawit (Shawiya) • سنڌي (Sindhi) • සිංහල (Sinhalese) • Slovenščina (Slovene) • Soomaaliga (Somali) • Hornjoserbsce (Upper Sorbian) • seSotho (Southern Sotho) • Basa Sunda (Sundanese) • Tatarça / Татарча (Tatar) • تركمن / Туркмен (Turkmen) • Uyghurche / ئۇيغۇرچە (Uyghur) • پنجابی (Western Punjabi) • Wollof (Wolof) • isiZulu (Zulu)

100+: አማርኛ (Amharic) • Aragonés (Aragonese) • ᏣᎳᎩ (Cherokee) • Kernewek / Karnuack (Cornish) • ދިވެހިބަސް (Divehi) • ગુજરાતી (Gujarati) • Hausa / هَوُسَ (Hausa) • ʻŌlelo Hawaiʻi (Hawaiian) • ᐃᓄᒃᑎᑐᑦ (Inuktitut) • Ikinyarwanda (Kinyarwanda) • Lingala • Gaelg (Manx) • Монгол (Mongolian) • Runa Simi (Quechua) • Gagana Samoa (Samoan) • Sängö • Setswana • ትግርኛ (Tigrinya) • Tok Pisin • Xitsonga (Tsonga) • ייִדיש (Yiddish)

Meta list + All Wiktionaries

Other Wikimedia projects

Wiktionary is run by the Wikimedia Foundation, a non-profit foundation headquartered in San Francisco, California, USA. Wikimedia operates several other multilingual and open-content sister wiki projects: