mum

definition: failing to speak or communicate etc when expected to

example:

speech part: adjective

synonyms: silent

definition: secrecy

example: mum's the word

speech part: noun

synonyms:

definition: informal terms for a mother

example:

speech part: noun

synonyms: mummy mamma ma mama mom momma mommy mammy

definition: of China

example:

speech part: noun

synonyms: florist's chrysanthemum florists' chrysanthemum

mum is explained and pronounced