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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Example Sentences
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Recent Examples of belt up
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
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
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
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
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His foray into fiction coincided with the writers’ strike, drying up all his income and future projects.
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Inside the front office, there is some sentiment internally to remaining patient and waiting to see if the market dries up on some players.
Verb
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In one sketch, David as Bell makes the historic first phone call, but the guy on the other end won't shut up.
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Dude, just leave — or stay and shut up!
Verb
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On Israel, a lot of candidates have clammed up.
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The Arrested Development actor clammed up when Smartless cohost Jason Bateman brought up Arnett's ex-wife and their bathroom habits.
Verb
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The brothers bonded over the game, but in his work, Grant so frequently provided a microphone for the voices a powerful organization would rather hush.
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Behind the station doors are 150 polished European-style rooms, hushed corridors and a few magnificent surprises.
Cite this Entry
“Belt up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belt%20up. Accessed 4 Jul. 2026.
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