Meanings
How to pronounce "keep mum":
AU
To refrain from talking, especially to remain silent about something that may be sensitive or secret.
Example Sentences
1
I promised my friend I would keep mum about her surprise party.
2
The detective urged the witness to keep mum about what he saw at the crime scene.
3
She decided to keep mum about her big promotion until she had officially accepted the offer.
4
He tried to keep mum about his involvement in the project, but his excitement gave him away.
5
Despite knowing the answer, she chose to keep mum and let others figure it out on their own.