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Synonyms

mum

1 American  
[muhm] / mʌm /

adjective

  1. silent; not saying a word.

    to keep mum.


interjection

  1. (used to demand immediate silence.)

idioms

  1. mum's the word, do not reveal what you know (about something); keep silent.

    Mum's the word, or the surprise party won't be a surprise.

mum 2 American  
[muhm] / mʌm /
Or mumm

verb (used without object)

mummed, mumming
  1. to say “mum”; call for silence.

  2. to act as a mummer.


mum 3 American  
[muhm] / mʌm /
mum 4 American  
[muhm] / mʌm /

noun

Chiefly British.
  1. mom.


mum 5 American  
[muhm] / mʌm /

noun

  1. a strong beer or ale, first made in Brunswick, Germany.


mum 6 American  
[muhm] / mʌm /

noun

Chiefly British.
  1. madam.


mum 1 British  
/ mʌm /

adjective

  1. keeping information to oneself; silent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. silence or secrecy is to be observed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
mum 2 British  
/ mʌm /

noun

  1. an informal word for mother 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mum 3 British  
/ mʌm /

verb

  1. (intr) to act in a mummer's play

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mum 4 British  
/ mʌm /

noun

  1. obsolete a type of beer made from cereals, beans, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does mum mean? Mum is an adjective that means keeping quiet. It can also be used by itself to mean Be quiet!This sense of mum is especially used in the expressions keep mum and mum’s the word. In the U.K. and other places, mum is used as a word for mom or madam. It’s also commonly used as a short way of saying chrysanthemum, a type of flower.Example: Mum’s keeping mum—I can’t get a word out of her!

Etymology

Origin of mum1

First recorded in 1350–1400; Middle English momme; imitative

Origin of mum2

First recorded in 1350–1400; Middle English mommen, verb use of mum 1; compare Middle Dutch mommen ”to act the mummer's part”

Origin of mum3

First recorded in 1890–95; shortened form

Origin of mum4

First recorded in 1815–25; nursery word; mom

Origin of mum5

First recorded in 1630–40; from German Mumme, said to have been named after Christian Mumme, the brewer who made it

Origin of mum6

Variant of ma'am

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His dad stayed with him during the nights, while his mum was with him in the day.

From BBC

A mum who set up an anti-bullying campaign following her daughter's death has pulled out of a political race after her son was verbally abused.

From BBC

For once, nobody rambled, nobody went off script, and almost everyone remembered to thank their mum.

From BBC

Hayden, from Cardiff, said she did briefly consider wearing her mum's old wedding dress but decided against it because it was no longer in fashion.

From BBC

Her growing profile has South Korea’s spy agency believing she is increasingly positioned to succeed her father, although North Korea has stayed mum on the succession topic.

From The Wall Street Journal