Meanings
From mum (“silence”). Recorded since 1704.
How to pronounce "mum's the word":
AUS
Indicates that something is a secret and not to be divulged.
Example Sentences
1
She promised to keep it a secret, so mum's the word.
2
I can't say anything about the surprise party because mum's the word.
3
The detective told the witness, 'Remember, mum's the word.'
4
I don't want anyone to know about our agreement, so mum's the word.
5
We all agreed that mum's the word on this sensitive topic.
