← Dictionary
効
effect · efficacy · result · benefit
N2On: こうKun: きく
Memory Aid
Imagine the '交' part as two things crossing or *interacting* with each other. Add '力' (power) to this interaction, and you get a clear *effect* or *result*.
Vocabulary
効果こうかeffect, result
有効ゆうこうvalid, effective
効くきくto be effective, to work
効力こうりょくefficacy, validity, effect
効用こうようutility, use, effect
Example Sentences
この薬は頭痛によく効きます。
This medicine works well for headaches.
運動は健康に良い効果があります。
Exercise has a good effect on health.
このチケットは来月末まで有効です。
This ticket is valid until the end of next month.
そのアドバイスは私にはあまり効かなかった。
That advice didn't have much effect on me.