mum's the word

Idioms  

1. Say nothing about this, it's a secret, as in Mum's the word on tonight's surprise party. This expression dates from about 1700, but mum, meaning “silence,” is much older. In 2 Henry VI (1:2) Shakespeare wrote, “Seal up your lips, and give no words but mum.”

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Example Sentences

See Examples For:

mum's the word

While mum’s the word for now, Mosher hopes to soon announce good news on the horizon for fans of the restaurant.

From Seattle Times ● Nov. 25, 2023

The short answer: For now, mum’s the word.

From Washington Times ● Feb. 5, 2019

He seemed to have taken quite a fancy to her, but mum's the word, my dear.

From The Time of Roses by Meade, L. T.

Oh, very good," replied the tar; "mum's the word.

From Jack Harkaway and His Son's Escape from the Brigand's of Greece by Hemyng, Bracebridge

Lie low and mum's the word as to Claude.—Your fellow conspirator, "Alston."

From The Way of Ambition by Soper, J. H. Gardner