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: ざい
Romaji: zai
Kana
Romaji

Definition

1

medicine; agent; (chemical) substance; drug; dose

Kanji

Readings: ザイ、 スイ、 セイ、 かる、 けず.る
Meanings: dose, medicine, drug

Example Sentences

この錠剤(じょうざい)(なに)ですか。
➥What are these tablets?
Full Entry➤
鎮痛剤(ちんつうざい)はありますか。
➥Do you have a pain reliever?
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この除草剤(じょそうざい)人間(にんげん)には無害(むがい)だ。
➥This weed killer does not harm human beings.
Full Entry➤
鎮痛剤(ちんつうざい)()みなさい。
➥Take some aspirin.
Full Entry➤
排卵(はいらん)誘発剤(ゆうはつざい)使(つか)っています。
➥I'm taking a fertility drug.
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ビタミン(ざい)()()はどこですか。
➥Where's the aisle for vitamins?
Full Entry➤
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