overshoe n footwear that protects your shoes from water or snow or cold Usage(s) He spent most of the next five years working at various menial jobs: arms-factory worker, waiter, train conductor and rubber-overshoe assembler. His left overshoe was on the floor; he had been wearing only the right one when he fell. Ingeniously, the experimenters ran an air tube through the overshoe beneath the oil-holding layer.