keep one's mouth shut

動詞

慣用表現

(idiomatic) To keep a secret; to refrain from speaking indiscreetly or carelessly; broadly, to refrain from speaking altogether.

日本語の意味

秘密を守る / 不用意に口を開かない / 余計なことは言わない

In situations like this, it's best to keep one's mouth shut.

こんな状況では、口をつぐむのが一番だ。

意味（1）

(idiomatic) To keep a secret; to refrain from speaking indiscreetly or carelessly; broadly, to refrain from speaking altogether.

He thought that he could get him a regular salary if he would come to Packingtown and do as he was told, and keep his mouth shut.

keeps one's mouth shut

（ present singular third-person ）

keeping one's mouth shut

（ participle present ）

kept one's mouth shut

（ participle past ）

kept one's mouth shut

（ past ）