Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mum”

See all translations

mum

noun [C] uk   /mʌm/ UK informal ( US mom) us  
A1 a mother: [as form of address] Happy birthday, Mum. All the mums and dads are invited to the school play at the end of the year. She loves being a mum.
More examples

mum

adjective uk   /mʌm/ informal us  
keep mum to say nothing about a subject: It's not official yet, so keep mum .
Translations of “mum”
in Spanish mamá…
in Korean 엄마…
in Arabic أُمّ…
in Portuguese mãe, mamãe…
in Catalan mama…
in Japanese ママ(英国で母をさす言葉)…
in Italian mamma…
in Chinese (Traditional) 媽媽…
in Russian мама…
in Turkish anne…
in Chinese (Simplified) 妈妈…
in Polish mama…
(Definition of mum from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of mum?
Add Cambridge dictionaries to your browser to your website

Definitions of “mum” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More