as in to quiet (down)
to stop talking
the schoolboy ordered his mates to belt up about the prank
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of belt up
In my testing, the Rucker 4.0 was comfortable without its hip belt up to around 30 pounds.
—
Ian Graber-Stiehl, Outside, 5 Dec. 2025
The evening’s co-main event bout between Raymond Ford and Thomas Mattice also has a belt up for grabs.
—Trent Reinsmith, Forbes.com, 9 Apr. 2025
Going back home Sunday looks nice, except for the Lake Effect Snow belt up in New York, Pennsylvania and Michigan.
—Amanda Castro, Newsweek, 26 Nov. 2024
So getting some of those at-bats under his belt up here will be part of that.
—Nick Piecoro, The Arizona Republic, 28 Aug. 2022
Canelo Alvarez of Mexico (57-1-2, 39 KOs) steps back into the ring to try and conquer yet another weight class, this time putting on several pounds for a matchup against current WBA light heavyweight champion Dmitry Bivol of Russia (19-0, 11 KOs) who is putting his belt up for grabs in this bout.
—oregonlive, 7 May 2022
Designed to attach to a belt up to 2½ inches wide or to a PALS system, the pouch comes very close to duplicating the performance of an OWB holster.
—Mike Dickerson, Outdoor Life, 23 Oct. 2020
Ian Graber-Stiehl, Outside, 5 Dec. 2025
The evening’s co-main event bout between Raymond Ford and Thomas Mattice also has a belt up for grabs.
—Trent Reinsmith, Forbes.com, 9 Apr. 2025
Going back home Sunday looks nice, except for the Lake Effect Snow belt up in New York, Pennsylvania and Michigan.
—Amanda Castro, Newsweek, 26 Nov. 2024
So getting some of those at-bats under his belt up here will be part of that.
—Nick Piecoro, The Arizona Republic, 28 Aug. 2022
Canelo Alvarez of Mexico (57-1-2, 39 KOs) steps back into the ring to try and conquer yet another weight class, this time putting on several pounds for a matchup against current WBA light heavyweight champion Dmitry Bivol of Russia (19-0, 11 KOs) who is putting his belt up for grabs in this bout.
—oregonlive, 7 May 2022
Designed to attach to a belt up to 2½ inches wide or to a PALS system, the pouch comes very close to duplicating the performance of an OWB holster.
—Mike Dickerson, Outdoor Life, 23 Oct. 2020
Recent Examples of Synonyms for belt up
Verb
-
While the administration has shuffled funding to pay DHS employees during the shutdown, those funds are expected to dry up in the first week of May if Congress doesn’t act beforehand.—
Mike Lillis,
The Hill,
28 Apr. 2026
-
Glaser, no doubt like many viewers, seemed a little baffled when the Swift songs dried up, and Idol had to pad out the rest of the episode with songs themed around California.—
Rob Sheffield,
Rolling Stone,
28 Apr. 2026
Verb
-
The Dark Knight Rises (2012) Those of us who love her were able to finally take a breather on this one when the film bros eventually shut up and were able to admit that Hathaway totally whips ass in this franchise closer.—
Chris Feil,
Vulture,
1 May 2026
-
But to those going to an upcoming show, for the love of God please shut up when Raye is sharing this story; a quiet room isn’t a license to yell stupid nonsense.—
Melissa Ruggieri,
USA Today,
27 Apr. 2026
Verb
-
Your language model would clam up from time to time to conserve its resources.—
Amanda Gefter,
Quanta Magazine,
10 Apr. 2026
-
Less sweat-trapping than many synthetic jackets, the Oreus kept me from clamming up while ski-touring in five-degree temps and dissipated sweat quickly when worn after strenuous climbs.—
Kelly Bastone,
Outside,
10 Feb. 2026
Verb
-
While most were silent, the few who traded muted pleasantries hushed as the homeowners of the Silver Court Trailer Park commenced their meeting.—
Max Klaver,
Miami Herald,
24 Apr. 2026
-
Inside the main museum, the galleries are hushed and sunlit, the light filtered through Renzo Piano’s famous roof.—
Carrie Honaker,
Bon Appetit Magazine,
23 Apr. 2026
Cite this Entry
“Belt up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belt%20up. Accessed 3 May. 2026.
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