plural of jumper cable

An electrical connection that bonds the electrical supply to ground via the water piping system.

Alternative form of smokejumper

Someone who competes in ski jumping

(athletics) An athlete who competes in the triple jump.

An athlete who competes in the long jump

(athletics) An athlete who competes in the high jump.

(often pluralized) A pair of insulated electrical wires with alligator clips at each end used to jump-start a car with a dead (flat) battery.

One who disreputably mines land legitimately claimed by another.

(equestrianism) A (human or horse) participant in show jumping