as in to contain
to keep from exceeding a desirable degree or level (as of expression)
try to rein in your spending, so you have some money left for saving
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for rein (in)
Verb
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Honorable mentions New to the regular concession offerings, the Baja-style fruit cups are a light and refreshing snack containing slices of watermelon, mango, jicama and cucumber and they are garnished with chamoy, lime juice and Tajin.—
Carlos Rico,
San Diego Union-Tribune,
18 Feb. 2026 -
Water and moisture resistance Wood and water don’t mix well, and any type of flooring that contains wood will be prone to warping, rot and permanent water damage.—
Dan Simms,
USA Today,
17 Feb. 2026
Verb
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Four years later, the Coastal Act became state law, regulating development in collaboration with local government agencies, guaranteeing public access and protecting marine and coastal habitats.—
Steve Lopez,
Los Angeles Times,
14 Feb. 2026
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Seamless construction meant no chafing, the wide waistband sat comfortably against the belly, and the 100% wool material offered temperature-regulating bliss.—
Anna Callaghan,
Outside,
14 Feb. 2026
Verb
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This person and others did express concern that a Supreme Court challenge could permanently damage the EPA, creating an uneven playing field while reducing incentives to curb greenhouse gases at a critical time for the planet.—
Diane Brady,
Fortune,
13 Feb. 2026
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Regulators have taken notice, with the Shanghai Gold Exchange repeatedly raising margin requirements to curb heightened volatility.—
Lee Ying Shan,
CNBC,
13 Feb. 2026
Verb
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There is no specific rule about who qualifies for the honor, a decision controlled by concurrence from both the House and Senate.—
MATT BROWN,
Arkansas Online,
21 Feb. 2026
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First, Iran would have to be able to control the strait after a strike.—
David Goldman,
CNN Money,
20 Feb. 2026
Verb
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This McGill and Chinese University of Hong Kong grad also has bylines in Architectural Digest, Men's Journal, Town & Country, and Observer—occasionally trading his keyboard for time in front of cameras for brand campaigns or keeping conversations flowing as a panel moderator.—
Condé Nast,
Condé Nast Traveler,
15 Feb. 2026
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Gabe Gordon and Timothy Gibbons leaned into the Olympics mood while keeping it hot and fun with a collection influenced by ’80s figure skaters, school girls and a whole lot of vintage Americana.—
Irene Kim,
Vogue,
15 Feb. 2026
Verb
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Male mice also recovered faster from a small surgical incision and from being restrained in a tube for two hours — a scenario designed to mimic the physical and emotional stress of a car accident.—
Aria Bendix,
NBC news,
20 Feb. 2026
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Officers smashed open their window with a weapon before pulling them out and restraining them.—
Isabelle Chapman,
CNN Money,
19 Feb. 2026
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Cite this Entry
“Rein (in).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rein%20%28in%29. Accessed 21 Feb. 2026.
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