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
-
Shipping via the Strait of Hormuz, through which one-fifth of the world’s crude oil normally flows, has dried up over the past two months, sending oil prices to four-year highs.—
Stephanie Yang,
CNN Money,
12 May 2026
-
If the economy continues to be on shaky ground, is the premium demand eventually going to dry up?—
Dana Taylor,
USA Today,
12 May 2026
Verb
-
Even when the houselights dim mid-overture some of them still don’t shut up.—
Christopher Arnott,
Hartford Courant,
3 May 2026
-
Because integralism doesn’t include the idea that the Pope should shut up on certain issues.—
Catherina Gioino,
Fortune,
2 May 2026
Verb
-
Everyone in the theater clammed up, as if embarrassed to have endorsed Max with laughter.—
Jackson McHenry,
Vulture,
29 Apr. 2026
-
Your language model would clam up from time to time to conserve its resources.—
Amanda Gefter,
Quanta Magazine,
10 Apr. 2026
Verb
-
Maggie saw couples pointing, whispering hushed opinions to each other.—
Literary Hub,
Literary Hub,
8 May 2026
-
These Beats Studio Pros are sleek enough to wear everywhere and powerful enough to hush airplane hum or chatty seatmates.—
Chaise Sanders,
Travel + Leisure,
3 May 2026
Cite this Entry
“Belt up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belt%20up. Accessed 13 May. 2026.
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