rein
🇺🇸
/reɪn/
🇬🇧
/reɪn/
A long leather strap used to control a horse.
She held the rein to guide the horse.
A strap held by an adult to keep a child from wandering.
The parent used a rein to keep the child safe.
Control or leadership over something.
He took the rein of the company.