This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Reading

Kana: こう
Romaji: kou
Kana
Romaji

Definition

1

efficacy; benefit; efficiency; effect; result; success

Kanji

Readings: コウ、 き.く、 ききめ、 なら.う
Meanings: merit, efficacy, efficiency, benefit

Example Sentences

(くすり)()いた。
➥The medicine has worked.
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その(くすり)はきいた。
➥The medicine took effect.
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切符(きっぷ)(さん)日間(にちかん)有効(ゆうこう)だ。
➥The ticket holds good for three days.
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(くすり)はすぐ()いた。
➥The medicine had an immediate effect.
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(かれ)()には()()く。
➥He has a sharp eye for painting.
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その(くすり)はよく()いた。
➥That medicine worked well for me.
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