01
効く
きく
to be effective
Meanings
- merit
- efficacy
- efficiency
- benefit
Readings
Onyomi
- コウ
Kunyomi
- き.く
- ききめ
- なら.う
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Useful words
02
効果
こうか
effect
03
効率
こうりつ
efficiency
04
有効
ゆうこう
valid
05
無効
むこう
invalid
06
逆効果
ぎゃくこうか
counterproductive
Compare Kanji
01果Meaning88%fruit, rewardEffect and result meet neatly: 果 shows what 効 produces.02利Meaning78%profit, advantage利 points to the useful outcome side of 効.03能Meaning79%ability, talentAbility in 能 sits close to effectiveness, especially when something actually works.04力Component83%power, strengthThe 力 part in 効 points to force behind an effect.05功Meaning72%achievement, meritsMerit and successful effort in 功 sit near the payoff sense of 効.06益Meaning70%benefit, gain益 adds another benefit-shaped angle to the effect in 効.