Definitions

1. noun

a strap or band, especially one used to control or guide a horse’s movement

“She took hold of the reins to steady the horse.”

2. noun

a limit or restriction on something, especially on government spending

“The government imposed a rein on public spending to reduce the deficit.”

3. verb

to control or guide something, especially a horse

“She learned to rein her horse through the obstacle course.”

4. verb

to limit or restrict something, especially government spending

“The government decided to rein in public spending to prevent an economic crisis.”