Definitions For Rein

noun

• One of a pair of long straps (usually connected to the bit or the headpiece) used to control a horse
• Any means of control
• A strap that is fastened to a device (called a bridle) placed on the head of an animal (such as a horse) and that is used to guide and control the animal
• The ability to limit or control something
• The power to guide or control someone or something

verb

• Keep in check
• Stop or check by or as if by a pull at the reins
• Stop or slow up one's horse or oneself by or as if by pulling the reins
• Control and direct with or as if by reins