Jisho

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Godan verb with ku ending, intransitive verb
1. to be effective; to show effectSee also 薬が効く
  • この
  • がんやく丸薬
  • しんぞう心臓
  • 効く
  • These pills act on the heart.
2. to do its work; to carry out its function wellSee also 目が利く
  • よくもまあ
  • わたし
  • そんな
  • くち
  • きける
  • How dare you speak to me like that?
3. to be possible to useSee also 割引が効く
  • わたし
  • まん
  • えん
  • まで
  • つけ
  • きく
  • My credit is good for 50,000 yen.
Other forms
利く 【きく】

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