KEEPMUM

keep mum

Verb

  1. To not talk; especially keep silent about something that may be sensitive or secret.
    "Be like dad, keep mum" (British wartime poster)


The above text is a snippet from Wiktionary: keep mum
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!