rein in
phrasal verb
reined in; reining in; reins in
1
: to limit or control (someone or something)
Congress must rein in spending.
You had better rein that kid in before she gets hurt.
2
: to make (an animal) stop by using reins
The rider reined in his horse.
Examples of rein in in a Sentence
Recent Examples on the Web
Pausing or withholding funds until Governor Jeniffer González Colón reins in municipal litigation may be the only way to restore accountability.
—
Dan Eberhart, Forbes.com, 28 Aug. 2025
Across the states, many legislative efforts are underway to rein in AI companies and mitigate AI’s harms.
—Andrew R. Chow, Time, 26 Aug. 2025
American politicians have been wholly unsuccessful in reining in that power, and now, as the AI boom brings Silicon Valley’s ambitions to new heights, they are positioned more than ever as industry cheerleaders.
—Matteo Wong, The Atlantic, 25 Aug. 2025
The policy, aimed at reining in aggressive borrowing, triggered a sector-wide liquidity crisis.
—Anniek Bao,lee Ying Shan, CNBC, 25 Aug. 2025
See All Example Sentences for rein in
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Dan Eberhart, Forbes.com, 28 Aug. 2025
Across the states, many legislative efforts are underway to rein in AI companies and mitigate AI’s harms.
—Andrew R. Chow, Time, 26 Aug. 2025
American politicians have been wholly unsuccessful in reining in that power, and now, as the AI boom brings Silicon Valley’s ambitions to new heights, they are positioned more than ever as industry cheerleaders.
—Matteo Wong, The Atlantic, 25 Aug. 2025
The policy, aimed at reining in aggressive borrowing, triggered a sector-wide liquidity crisis.
—Anniek Bao,lee Ying Shan, CNBC, 25 Aug. 2025
See All Example Sentences for rein in
Cite this Entry
“Rein in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rein%20in. Accessed 3 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share