keep mum

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keep mum

To remain silent; to not say anything (e.g., about a secret). Make sure you kids keep mum in there or you're both grounded! You have to keep mum about Dave's retirement party—we want it to be a surprise.

Common Names:

Name	Pronounced	Usage
Melchior	MEL-khee-awr (Dutch), MEL-kyawr (English)	Dutch, Judeo-Christian Legend
Isaura	ee-SOW-rah (Spanish)	Portuguese, Spanish, Late Roman
Sibylle	zi-BUY-lə (German)	German, French
Stephanus	-	Biblical Latin
Calvus	-	Ancient Roman
Halyna	hah-LI-nah	Ukrainian