mum's the word

English

Etymology

from mum (“silence”), recorded since 1704.

Pronunciation

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Phrase

mum's the word

1. (idiomatic) The accompanying facts are a secret, not to be divulged.

Translations

the accompanying facts are a secret

Catalan: muts i a la gàbia (ca) Chinese: Mandarin: 保密 (zh)

Italian: acqua in bocca (it)