Online dictionary: French Definition translation of words and expressions, definition, synonyms

When you learn a foreign language, or translate from or into it, some words and expressions are very difficult to use correctly. Our French monolingual dictionary will help you master French words and idiomatic phrases by providing complete explanations of their meaning. Use it for learning French or as an additional tool for French translation. In addition to the definition of commonly used French words and expressions, it includes specialized terms and the definition of many French words and expressions added by users to the Collaborative Dictionary.

See the latest user contributions to the French dictionary and add your own:

acidose dans laquelle le pH sanguin reste anormal, par la mise en jeu des mécanismes régulateurs de l’équilibre acido-basique.
ça marche pas
personne devant répondre des conséquences civiles d'une infraction commise par autrui, exemple : les parents d'un enfant mineur.
fait justificatif qui supprime le caractère délictueux d'actes accomplis en exécution d'un ordre légal donné par une autorité publique, compétente et légitime.
non-conformité d'une demande en justice aux règles de droit applicables.

How to participate:

  • Add words and phrases with complete definitions
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Help us write our French dictionary

When you browse the French Dictionary, you will also see thousands of French definitions added by our users: slang terms, technical terms, colloquial expressions and regionalisms. By simply clicking on a word you can instantly access its synonyms and its pronunciation, or add a new definition to the French dictionary.

A wide-ranging dictionary lookup tool

When you look up a word in the French dictionary, you’ll get results from the general dictionary as well as French definitions from the Collaborative Dictionary. Many definitions of French words and expressions have extra information about their origins or examples of use. For any of the words from our French dictionary you can display synonyms, pronunciation, and conjugation by simply clicking on the word. What’s more, you can contribute to improving the French definitions by adding new meanings to our French dictionary.

Why use the French dictionary

  • When you look up a French word, you get not only definitions from the general dictionary, but also words and expressions added by users.
  • It can provide extra help when you use bilingual dictionaries. Let’s say you look up the French translation of an English word and you don’t know the precise nuances of some of the French words given as translations. Simply look for them in the French monolingual dictionary. Your understanding of their meaning will improve significantly.
  • It provides easy access to synonyms, pronunciation, and conjugations
  • Show your mastery of the French language: add your own French definitions and comment on the words and expressions added by other community members
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"Dictionnaires français de définitions et de synonymes, © Synapse 2007 pour les données et © Softissimo 2007 pour le logiciel et la mise en page"