#underpants  an undergarment that covers the body from the waist to the top of the thighs
  supertype:  undergarment  a garment worn under other garments
  subtype:  bikini_pants  bloomers  drawers  pantie
  part of:  pantyhose  a woman's tights consisting of underpants and stockings

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