REIN
- to restrain (to hold back from action) [v REINED, REINING, REINS]
- narrow strap fastened to the bridle for controlling an animal
- the kidneys
- the region of the kidneys, or the lower part of the back
- (esp. in Biblical use) the seat of the feelings or affections, formerly identified with the kidneys
- to curtail one's speed or progress; halt
- to give complete freedom to; indulge freely