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Results:
効力 / こうりょく : n 1）effect 2）efficacy 3）validity 4）potency P
効率 / こうりつ : n 1）efficiency 2）efficacy 3）performance 4）utility factor P
労力 / ろうりょく : n 1）labour 2）labor 3）effort 4）toil 5）trouble P
効く / きく : v5k vi 1 1）to be effective 2）to show effect 2 3）to do its work 4）to carry out its function well 3 5）to be possible to use P
効き / きき : n 1）effectiveness 2）efficacy 3）efficaciousness
効 / かい / こう : n 1）effect 2）result 3）worth 4）use 5）avail n 6）efficacy 7）benefit 8）efficiency 9）effect 10）success
効用 / こうよう : n 1）use 2）utility 3）effect 4）benefit P
効目 / ききめ : n 1）effect 2）virtue 3）efficacy 4）impression
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効力

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