boot - footwear that covers the whole foot and lower leg

clog, geta, patten, sabot - footwear usually with wooden soles

covering - an artifact that covers something else (usually to protect or shelter or conceal it)

flats - footwear (shoes or slippers) with no heel (or a flat heel)

half sole - shoe sole extending from the shank to the toe

heel - the bottom of a shoe or boot; the back part of a shoe or boot that touches the ground

overshoe - footwear that protects your shoes from water or snow or cold

shoe - footwear shaped to fit the foot (below the ankle) with a flexible upper of leather or plastic and a sole and heel of heavier material

carpet slipper, slipper - low footwear that can be slipped on and off easily; usually worn indoors

sole - the underside of footwear or a golfclub

upper - piece of leather that forms the part of a shoe or boot above the sole