#bridle  headgear for a horse; includes a headstall and bit and reins to give the rider or driver control
  supertype:  headgear  stable gear consisting of any part of a harness that fits about the horse's head
  part:  bit.stable_gear  cheekpiece  headstall  rein
  part of:  harness.stable_gear__harnes  stable gear consisting of an arrangement of leather straps fitted to a draft animal so that it can be attached to and pull a cart

No statement uses or specializes bridle; click here to add one.