Mum has 12 different meanings across 4 categories:
Noun · Adjective · Intj · Proper Noun
of China
"In Chinese culture, mum is often used as an affectionate term for one's mother rather than the formal word 'mother'."
Mother.
"The pub served a cold pint of Mum to quench his thirst after a long day at work."
A chrysanthemum.
silence
A type of strong beer, originally made in Brunswick, Germany.
In plain English: Mum is another word for mother, meaning your female parent who gave birth to you and usually takes care of you at home.
"My mum called me to ask if I wanted dinner at home tonight."
To act in a pantomime or dumb show.
"The actor mummed through the entire scene without speaking a single word."
In plain English: To mum is to speak quietly so as not to be heard by others nearby.
"The teacher asked everyone to mum about the surprise party until the guests arrived."
Usage: Use the verb mum to describe acting without speaking during a performance or rehearsal. This usage is distinct from its noun form referring to a specific style of German beer.
stop speaking!, stop talking!, hush!
"Mum, please be quiet so we can hear the baby cry."
One's mother
"Mum made me a special sandwich for lunch."
Mum is simply a variant spelling of the word mam and also serves as an abbreviated form of mummy. Like its relatives mom and mama, it entered English to refer affectionately to one's mother.