mum

1 of 5

adjective

: silent
keep mum

mum

2 of 5

verb

mummed; mumming

intransitive verb

1
: to perform in a pantomime
2
: to go about merrymaking in disguise during festivals

mum

3 of 5

noun (1)

: a strong ale or beer

mum

4 of 5

chiefly British spelling of mom

mum

5 of 5

noun

Examples of mum in a Sentence

Adjective I'd like to know how much they paid, but they've been mum on that subject. kept mum about the surprise bridal shower
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Until now, Aaron has been mum about the reality TV show. Kimi Robinson, USA TODAY, 18 Dec. 2024 The Orioles are mum on their secret sauce – there are plenty of theories – though some of their guiding principles aren’t necessarily groundbreaking. Eno Sarris, The Athletic, 15 Aug. 2024
Verb
League officials have been mum on when new teams may be added, but Mayor Joe Hogsett continues to be bullish on his plans to build a soccer-specific stadium on the southeast side of downtown. Arika Herron, Axios, 7 Jan. 2025 In the past, many business leaders have stayed out of the fray and publicly mum about their own political beliefs. Bybrit Morse, Fortune, 6 Nov. 2024
Noun
His one partially redeeming act comes in giving his son Albie money in return for having Albie put in a good word with his mum. Paul Du Quenoy, Newsweek, 9 Jan. 2025 For taking my mum from Laval (his hometown in France) to London? David Ornstein, The Athletic, 7 Jan. 2025 See all Example Sentences for mum 

Word History

Etymology

Adjective

Middle English mom, momme, probably imitative of a sound made with closed lips

Verb

Middle English mommen, to mumble, perform (a mummer's play), probably in part from mom, in part from Middle French momer to go masked

Noun (1)

German Mumme

First Known Use

Adjective

14th century, in the meaning defined above

Verb

15th century, in the meaning defined at sense 1

Noun (1)

circa 1623, in the meaning defined above

Noun

1891, in the meaning defined above

Time Traveler
The first known use of mum was in the 14th century

Dictionary Entries Near mum

Cite this Entry

“Mum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mum. Accessed 18 Jan. 2025.

Kids Definition

mum

1 of 3 adjective
: silent sense 1
keep mum

mum

2 of 3 noun

mum

3 of 3

chiefly British variant of mom

More from Merriam-Webster on mum

Last Updated: - Updated example sentences
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