rein in

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

That would mean oil, which is being pumped full out in the world and can't be reined in that quickly, would fill tankers everywhere and the only way to not upset the supply market would be to dump it anywhere. — Jim Cramer, CNBC, 4 Oct. 2026

Bleecker remains nimble, with roughly 30 employees in New York and Los Angeles, and has a reputation for doing its best to rein in costs. — Brent Lang, IndieWire, 2 Oct. 2026

Inflation has remained much worse than anyone would like, and the Federal Reserve recently raised its main interest rate for the first time in three years to try to rein in the painful increases for the cost of living. — Stan Choe, Los Angeles Times, 2 Oct. 2026

The plan calls for reining in exploitative uses of AI currently being deployed in the workplace, including social scoring, surveillance designed to undermine organizing and systemic bias. — Matt Post, Baltimore Sun, 1 Oct. 2026

Rhymes for rein in

• tainan