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effect noun

  /i-/ , /iˈfɛkt/ , /ə-/ , /ɪˈfɛkt/
  • (filmology, computer graphics, demoscene) An illusion produced by technical means (as in "special effect")
  • (sound engineering) An alteration, or device for producing an alteration, in sound after it has been produced by an instrument.
  • (science) A scientific phenomenon, usually named after its discoverer.
 effet
  • (usually, in the plural) Belongings, usually as personal effects.
 effets

effect verb

  /i-/ , /iˈfɛkt/ , /ə-/ , /ɪˈfɛkt/
  • (transitive) To make or bring about; to implement.
 effectuer

effective adjective

  /əˈfektɪv/ , /əˈfɛktɪv/ , /ɪˈfɛktɪv/
  • Having the power to produce a required effect or effects.
 efficace, effectif
  • Producing a decided or decisive effect.
 efficace, décisif
  • Efficient, serviceable, or operative, available for useful work.
 efficace
  • Actually in effect.
 en vigueur

effectiveness noun

  /əˈfɛk.tɪv.nəs/ , /ɪˈfɛk.tɪv.nɪs/
  • The property of being effective, of achieving results.
 efficacité

effectively adverb

  /ɪˈfɛktɪvli/
  • In an efficient or effective manner; with powerful effect.
 efficacement

effectivity noun

  • (uncountable) The ability or power to be effective.
  • (countable) A measure of the effectiveness of something.
 efficacité
side effect
effet de bord, effet secondaire, effet indésirable
greenhouse effect
effet de serre
butterfly effect
effet papillon
domino effect
effet domino
take effect
agir, faire effet
Doppler effect
effet Doppler
in effect
en pratique
special effect
effet spécial
sound effect
bruitage, effet sonore
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