mum: Meaning and Definition of

mum

1. silent; not saying a word: to keep mum.

1. say nothing! be silent!
2. do not reveal what you know (about something); keep silent: Mum's the word, or the surprise party won't be a surprise.

mum

1. to say “mum”; call for silence.
2. to act as a mummer.

mum

1. chrysanthemum.

mum

1. mother.

mum

1. a strong beer or ale, first made in Brunswick, Germany.

mum

1. madam.