rein
noun
Often a leather strap, fastened to each end of the bit of a bridle, by which the rider or driver controls a horse or other animal by pulling so as to exert pressure on the bit.
reined
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past participleof rein.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
-
past tense formof rein.past tense
Used to describe completed actions or previous habitual actions.
reinnounOften a leather strap, fastened to each end of the bit of a bridle, by which the rider or driver controls a horse or other animal by pulling so as to exert pressure on the bit.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They joined remotely to warn about the dangerous scenarios that they see coming if an AI arms race doesn’t get reined in.
From The Wall Street Journal ● Oct. 5, 2026
OTTAWA—Canadians look to have reined in their retail spending last month following six straight months of rising purchases through June.
From The Wall Street Journal ● Aug. 21, 2026
As so many staff left these labs and research centers after their projects were reined in or canceled, the upheaval is likely to linger, the scientists, many of them based in Boulder, warn.
From Barron's ● Jun. 1, 2026
The winter resort of Trojena in the mountains of the north west has also been reined in.
From BBC ● May 25, 2026
Lancelot reined in and rode track to him.
From "The Once and Future King" by T. H. White
