To propel oneself rapidly upward, downward and/or in any horizontal direction such that momentum causes the body to become airborne. • To cause oneself to leave an elevated location and fall downward. • To pass by means of a spring or leap; to overleap. • To employ a parachute to leave an aircraft or elevated location. • To jerk the body involuntarily in response to a sudden or unexpected stimulus. • To drop sharply downward at the sound of a bowstring release or the fire of a gun. • To increase sharply, to rise, to shoot up. • To employ a move in certain board games where one game piece is moved from one legal position to another passing over the position of another piece. • To move to a position (in a queue/line) that is further forward. • To pass (a traffic light) when it is indicating that one should stop. • To attack suddenly and violently. • To engage in sexual intercourse with (a person). • To cause to jump. • To move the distance between two opposing subjects. • To increase the height of a tower crane by inserting a section at the base of the tower and jacking up everything above it. • To increase speed aggressively and without warning. • To expose to danger; to risk; to hazard. • To join by a buttweld. • To thicken or enlarge by endwise blows; to upset. • To bore with a jumper. • To jump-start a car or other vehicle with a dead battery, as with jumper cables. • To coincide; to agree; to accord; to tally; followed by with. • To start executing code from a different location, rather than following the program counter. • To flee; to make one's escape. • To shift one's position or attitude, especially suddenly and significantly. • To switch locations on chromosomes. • To commit suicide.