JLPT N2Idioms
口を割る
- Meaning
- 隠していたことを白状する
- Explanation
- "口を割る" means to finally confess something that had been hidden, or a secret. It is used in interrogations and the like. The key point is that it is not about officially stating something like c1 "重要な発表をする (make an important announcement)," but rather about disclosing something one had been hiding.
Original Japanese explanation
「口を割る」は、隠していたことや秘密をついに白状することです。取り調べなどで使われます。c1「重要な発表をする」のように公式に述べる意味ではなく、隠し事を打ち明ける点が要点です。
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