rein

1 of 2

noun

ˈrān 

1

: a strap fastened to a bit by which a rider or driver controls an animal

—usually used in plural

2

a

: a restraining influence : check

kept a tight rein on the proceedings

b

: controlling or guiding power

—usually used in plural

the reins of government

3

: opportunity for unhampered activity or use

gave full rein to her imagination

Illustration of rein

• R rein 1

rein

2 of 2

verb

reined; reining; reins

transitive verb

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

reined in her horse

couldn't rein his impatience

intransitive verb

1

: to stop or slow up one's horse or oneself by or as if by pulling the reins

2

archaic : to submit to the use of reins

Synonyms

Noun

• chair
• driver's seat
• head
• headship
• helm

Verb

• bridle
• check
• constrain
• contain
• control
• curb
• govern
• hold
• inhibit
• keep
• measure
• pull in
• regulate
• restrain
• rule
• tame

Examples of rein in a Sentence

Noun

He has people working for him, but he has a tight rein on every part of the process.

after the president resigned, the vice president stepped in and took the reins of the company

Verb

try to rein in your spending, so you have some money left for saving

Recent Examples on the Web

Noun

Business Company will also continue its philanthropic mission, which has had wide impact in the Orlando area UPDATED: December 3, 2024 at 4:24 PM EST Frank Santos, a longtime associate of founder Harris Rosen, will take the company's leadership reins. —Skyler Swisher, Orlando Sentinel, 3 Dec. 2024

Yes, but: In January, Inslee will hand the reins to Governor-elect Bob Ferguson, who may have different spending priorities. —Melissa Santos, Axios, 2 Dec. 2024

Verb

Supervisors consider how to rein it in San Diego County schools retirement program outsources financial advisers Is Georgia’s election system constitutional? —San Diego Union-Tribune, 25 Nov. 2024

Those moves have accelerated criticisms from Democrats who warn that Trump’s election hands government reins to movement conservatives who spent years envisioning how to concentrate power in the West Wing and impose a starkly rightward shift across the U.S. government and society. —Geoff Colvin, Fortune, 24 Nov. 2024

Word History

Etymology

Noun

Middle English reine, from Anglo-French resne, reine, from Vulgar Latin *retina, from Latin retinēre to restrain — more at retain

First Known Use

Noun

13th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined at transitive sense 1

Phrases Containing rein

• bearing rein
• free rein
• keep a rein on
• neck-rein
• rein in

Kids Definition

rein

1 of 2 noun

ˈrān 

1

: a line or strap fastened to a bit on each side for controlling an animal (as a horse)

—usually used in plural

2

a

: an influence that slows, limits, or holds back

kept the child under a tight rein

b

: controlling or guiding power

—usually used in plural

seized the reins of government

3

: complete freedom : scope

gave full rein to her imagination

rein

2 of 2 verb

: to check, control, or stop by or as if by reins

reined in the horse

couldn't rein his impatience