Meaning of “keep your mouth shut” in the English Dictionary

british dictionary

"keep your mouth shut" in British English

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keep your mouth shut

informal

B2 to not talk about something:

I don't know whether to tell him what I know or keep my mouth shut.

(Definition of “keep your mouth shut” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"keep your mouth shut" in American English

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keep your mouth shut

to say nothing:

He told me to keep my mouth shut.

(Definition of “keep your mouth shut” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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