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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The Chiefs Hall of Honor on the second-level concourse contains the organization’s four Super Bowl trophies, memorabilia, exhibits and documents, and there is no admission to walk through history.—
Blair Kerkhoff,
Kansas City Star,
17 June 2026 -
The farm system does not contain an endless supply of prospects.—
Patrick Mooney,
New York Times,
17 June 2026
Verb
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There are no federal laws regulating the use or development of chatbots.—
Sharyn Alfonsi,
CBS News,
8 Dec. 2025
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For more than 100 years, independent government agencies have regulated American monetary policy and stock trades, transportation systems and election campaigns, consumer product safety and broadcast licenses all free from direct political interference and supervision by the White House.—
Devin Dwyer,
ABC News,
8 Dec. 2025
Verb
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Starmer’s government has been considering tougher limits on children’s social media as governments around the world face growing pressure to curb young people’s time online.—
Angela Yang,
NBC news,
14 June 2026
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California had always permitted raw milk to be sold in stores, but Los Angeles County’s more stringent rules had, in effect, curbed its retail sales.—
CNN Money,
CNN Money,
14 June 2026
Verb
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Tampa Bay trails the Carolina Panthers, who at 7-6 now control their own destiny in the NFC South race.—
Alex Valdes,
New York Times,
12 Dec. 2025
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Who controls the reshaping—and under what conditions—remains far from settled.—
Eric Schmidt,
Time,
11 Dec. 2025
Verb
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Several layers of clothes will keep you warmer than a single heavy coat.—
Amanda Greenwood,
MSNBC Newsweek,
9 Dec. 2025
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Head to Amazon to pick up a space heater, then keep scrolling for some of the best-selling models worth checking out.—
Toni Sutton,
PEOPLE,
9 Dec. 2025
Verb
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International institutions will no longer restrain our power or dictate our policy.—
Newsweek Contributors,
MSNBC Newsweek,
10 Dec. 2025
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Those would be valuable developments for the NCAA and member institutions, which have faced a barrage of antitrust lawsuits over rules that restrain economic opportunities for college athletes.—
Michael McCann,
Sportico.com,
9 Dec. 2025
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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 18 Jun. 2026.
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