"mum" in the noun sense
1. florist's chrysanthemum, florists' chrysanthemum, mum, Dendranthema grandifloruom, Chrysanthemum morifolium
of China
2. ma, mama, mamma, mom, momma, mommy, mammy, mum, mummy
informal terms for a mother
3. mum
secrecy
"mum's the word"
"mum" in the adjective sense
1. mum, silent
failing to speak or communicate etc when expected to
"the witness remained silent"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License