an outer covering of leather etc for the foot, especially one which does not reach above ankle; the part of a brake that presses against the wheel (of a bicycle, car etc)

footwear

a canvas shoe with a rubber etc sole; tennis shoe

running shoe

a V-shaped piece of wood or metal, used to split wood or rock (by being hammered), to widen an opening or to keep two things separate; to fix (something) tightly (as if) with a wedge

solid piece, often triangular