mum
An "mum" can refer to either a mother or a silence.
When someone says "keep mum about this," they mean don't tell anyone. It's like a secret that you shouldn't share with others, and if you do, it's like breaking a promise of trust. This use of the word is all about being quiet and not spreading rumors. People might also say "mum" to ask someone for their mom, which is the person who gave birth to them - in other words, one of your parents.
How common is "mum"?
It appears most frequently in fiction texts and less often in other writings.
noun
(Commonwealth, Ireland, informal) Mother.
Example: “Mum! Mum!” he shouted out. The laughter stopped. Two bright, sparkling yellow eyes peeped from the hollow. Atop her head were the fluffy ear tufts that his mum was so proud of because they were fuller and lovelier than those of most Great Horned Owls. It was indeed his mum!
Real examples of "mum" in context
