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Borrowed from Latin functio, functionem, from fungor(to work).



fonction f (plural fonctions)

  1. A function (what something does or is used for)
    Un aspirateur a pour fonction de nettoyer le sol en aspirant la poussière qui s'y trouve.
    The function of a vacuum cleaner is to clean the floor by aspirating the dust.
  2. role (function or position of something or someone)
  3. (mathematics) An algebraic function
    Je voudrais démontrer que cette fonction est injective.
    I would like to prove that this function is injective.

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