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
-
The Wild, in large part because Kaprizov and Boldy aren’t scoring, have dried up offensively.—
Michael Russo,
New York Times,
30 Mar. 2026
-
But Newman had a hunch that when soil dries up, the antibiotics bacteria use to wage war might become more potent, simply because of evaporation.—
Jonathan Lambert,
NPR,
27 Mar. 2026
Verb
-
Trump still hasn’t learned to shut up and try to be civilized.—
George Skelton,
Mercury News,
26 Mar. 2026
-
The company plans to shut up to another 30 locations during the first half of 2026, chief executive Lisa Harper said during the call.—
Itzel Luna,
Los Angeles Times,
24 Mar. 2026
Verb
-
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
-
But when co-host Maria McErlane looked for details, Norton clammed up.—
Joseph Wilkinson,
Mercury News,
28 Jan. 2026
Verb
-
The keys are satisfying to type on and impressively hushed without feeling mushy.—
Aubrey Jowers,
PC Magazine,
31 Mar. 2026
-
What could have been a straightforward suburban critique is instead closer to a rich, deep baroque painting capturing longing, power, and hushed domestic drama.—
Vanity Fair,
Vanity Fair,
26 Mar. 2026
Cite this Entry
“Belt up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belt%20up. Accessed 3 Apr. 2026.
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