English–Japanese
“effect” in Japanese
How to say “effect” in Japanese
“Effect” in Japanese is 効果 (kōka).
Marks what is brought about by a cause or action, especially the useful change it produces.
Example sentences with 効果
薬はすぐに効果が出ます。kusuri wa su gu ni kō ka ga de ma su
The medicine takes effect quickly.
薬を飲み続けると、数日で効果が現れます。kusuri o no mi tsuzu ke ru to sū jitsu de kō ka ga arawa re ma su
If you keep taking the medicine, you will notice an effect within a few days.
Tips for using 効果
- 効果 (kōka) can describe the benefit of a treatment, study method, or plan, not only a physical change.
Other Japanese words for “effect”
この薬の作用は強いです。ko no kusuri no sa yō wa tsuyo i de su
The effect of this medicine is strong.
その薬の影響は小さいです。so no kusuri no ei kyō wa chii sa i de su
The effect of the medicine is small.
この薬は効力が長く続きます。ko no kusuri wa kō ryoku ga naga ku tsuzu ki ma su
This medicine remains effective for a long time.
この薬は効き目があります。ko no kusuri wa ki ki me ga a ri ma su
This medicine has an effect.



