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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Pomegranates also contain vitamin K and folate, which can help support healthy blood clotting and cell growth, respectively.
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The Lineage warehouse, built in 2018, is likely to contain different materials of concern.
Verb
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The clinical version dates to research in the 1960s and 1970s, when devices tracked heart rate variability, muscle tension and skin temperature to help people regulate what was once considered automatic.
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The chronic disease, which impairs the body’s ability to properly regulate blood sugar, contributed to 94,445 deaths that year.
Verb
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Learn about new regulations that aim to curb contact with swimmers.
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The Financial Times reported that Google has curbed Meta’s use of its AI models after the Facebook and Instagram parent company wanted to use more computing capacity than Google could provide.
Verb
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Russia meanwhile has claimed that its forces now control the important town of Kostyantynivka in the Donetsk region of eastern Ukraine.
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The plant also can be controlled by applying a nonselective herbicide, but that will not save digging.
Verb
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For just $18, this set includes four cubes in different sizes, along with a shoe bag, laundry bag, and cosmetic pouch to keep every travel essential in its place.
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The app also offers travel guides and organizes your daily itinerary, keeping all your plans in one place.
Verb
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Three women were restrained, arrested, and held for nearly 20 hours in the Baltimore City Detention Center, the lawsuit alleges.
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After a special education student in Seymour Public Schools was restrained and secluded 53 times in seven months, the child’s parents filed an official state complaint.
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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 5 Jul. 2026.
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