rein in

Definition of rein 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.

Word by Word Definitions

rein play
  1. : a strap fastened to a bit by which a rider or driver controls an animal

  2. : a restraining influence : check

  3. : controlling or guiding power

  1. : to control or direct with or as if with reins

  2. : to check or stop by or as if by a pull at the reins

  3. : to submit to the use of reins


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