Cause (a horse) to stop or slow down by pulling on its reins
he reined in his horse and waited for her
Cause (a horse) to change direction by pulling on its reins
he reined the mare's head about and rode off
Keep under control; restrain
with an effort, she reined back her impatience
critics noted the failure of the administration to rein in public spending
A long, narrow strap attached at one end to a horse's bit, typically used in pairs to guide or check a horse while riding or driving
The power to direct and control
management is criticized for its unwillingness to let go of the reins of an organization and delegate routine tasks
one of a pair of long straps (usually connected to the bit or the headpiece) used to control a horse
harness: control and direct with or as if by reins; "rein a horse"
stop or slow up one's horse or oneself by or as if by pulling the reins; "They reined in in front of the post office"
any means of control; "he took up the reins of government"
rule: keep in check; "rule one's temper"
Reins are items of horse tack, used to direct a horse or other animal used for riding or driving. Reins can be made of leather, nylon, metal, or other materials, and attach to a bridle via either its bit or its noseband.
A strap or rope attached to the bridle or bit, used to control a horse, animal or young child; To direct or stop a horse by using reins; this sense?) (usually "rein in") To stop or restrain a horse. Also used figuratively
(reins) The kidneys; The lower part of the back
The reins of a bridle attach to the bit, below the attachment for the cheekpieces. The reins are the rider's link to the horse, and are seen on every bridle. Reins are often laced, braided, have stops, or are made of rubber or some other tacky material to provide extra grip. 
(Reins) Break-away device used to tie horses with.
(REINS) Literally the kidneys that were considered the seat of affection.
(Reins) Long strips of leather which attach usually to a bit and extend to the position of the rider or driver for use in steering and controlling the horse.
(Reins) Strap that runs from the bridle bit around the horse's neck that is held and manipulated by the cowboy. These straps apply pressure on a horse's mouth and neck in order to steer the animal.
(Reins) That part of the bridle that runs from the bit to your hands.
(Reins) To help steer the horse
(Reins) are long, narrow leather strips attached at one end to the bit. The rider holds the other end.
(Reins) noun, A strap fastened to a bit by which a rider can control an animal. The reins of a horse are located above a horse, which give a rider full control over an animal.
A long, narrow strip attached at one end to a horse's bit, typically used in pairs to guide or check a horse while riding.
A homebrew application that allows you to backup and write saves to an original DS card.