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alcohol; sake
「酒」 has other readings with different meanings.
彼は酒を飲みすぎて体を壊してしまった。
He ruined his health by drinking too much.
日本酒は米から作られるお酒として有名だ。
Japanese sake is famous as an alcohol made from rice.
酒を控えることで健康を取り戻したい。
I want to regain my health by reducing alcohol.