keep a rein on

idiom
Updated on: 15 Nov 2017

Definition of keep a rein on

: to limit or control (something)
  • We need to keep a rein on our spending.
  • He keeps a tight rein on every part of the process.

Word by Word Definitions

keep play
  1. : to retain in one's possession or power

  2. : to refrain from granting, giving, or allowing

  3. : to have in control

  1. : the means or provisions by which one is kept

  2. : one that keeps or protects: such as

  3. : fortress, castle

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


Seen and Heard

What made you want to look up keep a rein on? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!