English version

keep mum

From Longman Dictionary of Contemporary Englishkeep mumkeep muminformalTELL A SECRET to not tell anyone about a secret mum
Examples from the Corpus
keep mumIn politics, as in life, truth hurts.Better to keep mum.The grinning skull on the back of the mystery woman's jacket is keeping mum.So, darling, keep mum about where we are.Far right: Septimus keeps Mum and Dad awake.That obviously includes me, so your mum's got to keep mum, chick.
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