mum

Dictionary definition · mum

noun

of China
informal terms for a mother
secrecy"mum's the word"

adjective

failing to speak or communicate etc. when expected to"the witness remained silent"

Similar words

silent Chrysanthemum morifolium Dendranthema grandifloruom florist's chrysanthemum florists' chrysanthemum ma mama mamma mammy mom

Source: Open English WordNet (CC BY 4.0).