as in to quiet (down)
to stop talking
the schoolboy ordered his mates to belt up about the prank
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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
-
Gen Z in particular, whose entry-level roles are drying up, is bearing the brunt of a push for better working conditions.—
Preston Fore,
Fortune,
14 Apr. 2026
-
Capital has also dried up, especially for large projects that generate hundreds of new units.—
Bloomberg,
Chicago Tribune,
14 Apr. 2026
Verb
-
But the only way to shut up his doubters is to win.—
Antwan Staley,
New York Daily News,
3 Apr. 2026
-
That tom gobbled once more and shut up.—
Charles Elliott,
Outdoor Life,
2 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
-
The Haitian American singer-songwriter keeps the mood hushed and hazy on his second album, channeling the experimental R&B canon in songs that toggle between sincerity and opacity.—
Emma Madden,
Pitchfork,
14 Apr. 2026
-
The atmosphere was hushed and businesslike; this was a routine pretrial hearing, and only a few other spectators joined me in the gallery.—
Patrick Radden Keefe,
New Yorker,
13 Apr. 2026
Cite this Entry
“Belt up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belt%20up. Accessed 17 Apr. 2026.
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