mum's the word

Definition of mum's the word

informal
used to say that some information is being kept secret or should be kept secret
  • We want her birthday party to be a surprise, so mum's the word.

Word by Word Definitions

mum play
  1. : silent

  1. : to perform in a pantomime

  2. : to go about merrymaking in disguise during festivals

  1. : a strong ale or beer

  1. : chiefly British spelling of mom

  1. : chrysanthemum

word play
  1. : something that is said

  2. : talk, discourse

  3. : the text of a vocal musical composition

  1. : speak

  2. : to express in words : phrase


Seen and Heard

What made you want to look up mum's the word? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a ram's-horn trumpet used in Judaism

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!