mummed; mumming
1
: to perform in a pantomime
2
: to go about merrymaking in disguise during festivals
: a strong ale or beer
mum
4 of 5chiefly British spelling of mom
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
Nicole Hoey, Robb Report, 28 Apr. 2026
Thales finally talks Thales had remained mum about these various issues and did not offer a comment until Monday morning, nearly five days after Isaacman’s testimony.
—Eric Berger, ArsTechnica, 27 Apr. 2026
David W. Brown, Scientific American, 31 Mar. 2026
There’d been a sense of foreboding since the French media giant completed its $2 billion takeover of South African pay-TV company MultiChoice last year, with the company mum on its post-merger plans and suspicion rampant that cost-cutting measures were in the cards.
—Christopher Vourlias, Variety, 7 Mar. 2026
Ethan Shanfeld, Variety, 13 May 2026
Evie’s eccentric family also featured, including fiercely loving single mum Suz (Suranne Jones), sister Izzie (Liv Hill), boyfriend Josh (Adam Long), and frustrating neighbor Callum (Owen Cooper).
—Jake Kanter, Deadline, 11 May 2026
See All Example Sentences for mum
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Adjective
As for interior, the yard was mum on those details for now, at least.
—Nicole Hoey, Robb Report, 28 Apr. 2026
Thales finally talks Thales had remained mum about these various issues and did not offer a comment until Monday morning, nearly five days after Isaacman’s testimony.
—Eric Berger, ArsTechnica, 27 Apr. 2026
Verb
Despite the space agency staying relatively mum about the finer details of its plan, a former senior NASA official, speaking anonymously, believes there’s reason for optimism.
—David W. Brown, Scientific American, 31 Mar. 2026
There’d been a sense of foreboding since the French media giant completed its $2 billion takeover of South African pay-TV company MultiChoice last year, with the company mum on its post-merger plans and suspicion rampant that cost-cutting measures were in the cards.
—Christopher Vourlias, Variety, 7 Mar. 2026
Noun
Netflix made the announcement during their Upfronts presentation, keeping mum on any information relating to casting or production for the series.
—Ethan Shanfeld, Variety, 13 May 2026
Evie’s eccentric family also featured, including fiercely loving single mum Suz (Suranne Jones), sister Izzie (Liv Hill), boyfriend Josh (Adam Long), and frustrating neighbor Callum (Owen Cooper).
—Jake Kanter, Deadline, 11 May 2026
See All Example Sentences for mum
Cite this Entry
“Mum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mum. Accessed 17 May. 2026.
Copy CitationKids Definition
mum
1 of 3 adjective
: silent sense 1
keep mum
mum
2 of 3 nounmum
3 of 3chiefly British variant of mom
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