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English: merit efficacy efficiency benefit On-Yomi: コウ Kun-Yomi: き.く ききめ なら.う
Bushu (Radical) Info: 力 (ちから) – strong
Henshall Mnemonic: exchange of strength proves most effective
Levels: JLPT N2 | JLPT 2 (old) | Grade 5 Frequency: #538 of the 2500 most used kanji in newspapers Common Words and/or Phrases Using this Kanji: Click any individual kanji to view a similar information sheet for it. Click [K] to look up the word's individual character(s) at WWWJDIC. Click [D] to look up the word at WWWJDIC (definition is the same but other useful features exist).
Click [Jisho] to look up the word at Jisho.org.
JLPT N3 Words 有 効 [ゆうこう] (adj-na,n) validity; availability; effectiveness [ K] [ D] [ Jisho] 効く [きく] (v5k) to be effective [ K] [ D] [ Jisho] 効 果 [こうか] (n,adj-no) effect; effectiveness; efficacy; result [ K] [ D] [ Jisho] JLPT N2 Words 効 力 [こうりょく] (n) effect; efficacy; validity; potency [ K] [ D] [ Jisho] JLPT N1 Words 無 効 [むこう] (adj-na,n) invalid; no effect; unavailable [ K] [ D] [ Jisho] 効き 目 [ききめ] (n) effect; virtue; efficacy; impression [ K] [ D] [ Jisho] 効 率 [こうりつ] (n) efficiency [ K] [ D] [ Jisho] Other Popular Words Not Classified by JLPT 実 効 [じっこう] (n) efficacy; efficiency [ K] [ D] [ Jisho] 発 効 [はっこう] (n) coming into effect [ K] [ D] [ Jisho] 即 効 [そっこう] (n) immediate effect [ K] [ D] [ Jisho] 時 効 [じこう] (n) statute of limitations [ K] [ D] [ Jisho] 効 果 的 [こうかてき] (adj-na) effective; successful [ K] [ D] [ Jisho] 効 能 [こうのう] (n) effect; efficacy; virtue; benefit [ K] [ D] [ Jisho] 効 用 [こうよう] (n) use; utility; effect; benefit [ K] [ D] [ Jisho] 逆 効 果 [ぎゃくこうか] (n) backfire; counterproductive; opposite effect [ K] [ D] [ Jisho] 効 率 的 [こうりつてき] (adj-na) efficient [ K] [ D] [ Jisho] 特 効 薬 [とっこうやく] (n) specific medicine; wonder drug; silver bullet [ K] [ D] [ Jisho]