jump
 
jump
 (jŭmp) verb
jumped, 
jumping, jumps
 
verb
, intransitive
1.
	a. To spring off the ground or other base by a muscular effort of the legs and feet. b. To move suddenly and in one motion: jumped out of bed. c. To move involuntarily, as in surprise: jumped when the phone rang. d. To parachute from an aircraft.
2.	a. Informal. To move quickly; hustle: Jump when I give you an order. b. To take prompt advantage; respond quickly: jump at a bargain.
3.	a. To enter eagerly into an activity; plunge: jumped into the race for the nomination. b. To begin or start. Often used with off: The project jumped off with great enthusiasm but interest flagged during the summer.
4.	To form an opinion or a judgment hastily: jump to conclusions. 
5.	To make a sudden verbal attack; lash out: jumped at me for being late; jumped on her subordinates for their carelessness. 
6.	a. To undergo a sudden and pronounced increase: Prices jumped in October. b. To rise suddenly in position or rank: jumped over two others with more seniority.
7.	To move discontinuously or change after a short period: jumps from one subject to another; jumped from one job to another. 
8.	a. To be displaced by a sudden jerk: The phonograph needle jumped. b. To be displaced vertically or laterally because of improper alignment: The film jumped during projection.
9.	Computer Science. To move from one set of instructions in a program to another out of sequence. 
10.	Games. a. To move over an opponent's playing piece in a board game. b. To make a jump bid in bridge.
11.	Slang. To be lively; bustle: a disco that really jumps. 
verb
, transitive
1.
	To leap over or across: jump a fence. 
2.
	To leap onto: jump a bus. 
3.
	Slang. To spring upon in sudden attack; assault or ambush: Muggers jumped him in the park. 
4.	To move or start prematurely before: jumped the starting signal. 
5.	To cause to leap: jump a horse over a fence. 
6.	To cause to increase suddenly: Unexpected shortages jumped milk prices by several cents a quart. 
7.	To pass over; skip: The typewriter jumped a space. 
8.	To raise in rank or position; promote. 
9.	Games. a. To move a piece over (an opponent's piece) in a board game, often thereby capturing the opponent's piece. b. To raise (a partner's bid) in bridge by more than is necessary.
10.	To jump-start (a motor vehicle). 
11.	To leave (a course), especially through mishap: The train jumped the rails. 
12.	Slang. a. To leave hastily; skip: jumped town a step ahead of the police. b. To leave (an organization, for example) suddenly or in violation of an agreement: jumped the team and signed with a rival club.
13.	To seize or occupy illegally: jump a mining claim. 
14.	To forfeit (bail) by failing to appear in court. 
noun
1.
	a. The act of jumping; a leap. b. The distance covered by a jump: a jump of seven feet. c. An obstacle or a span to be jumped.
2.	A descent from an aircraft by parachute. 
3.	Sports. Any of several track-and-field events in which contestants jump. 
4.	Informal. An initial competitive advantage; a head start: got the jump on the other daily papers. 
5.	a. A sudden pronounced rise, as in price or salary. b. An impressive promotion.
6.	A step or level: managed to stay a jump ahead of the others. 
7.	A sudden or major transition, as from one career or subject to another. 
8.	a. A short trip. b. One in a series of moves and stopovers, as with a circus or road show.
9.	Games. A move in a board game over an opponent's piece. 
10.	Computer Science. A movement from one set of instructions to another. 
11.	a. An involuntary nervous movement; a start. b. jumps A condition of nervousness. Often used with the.
12.	A jump-start of a motor vehicle. 
 
idiom.
jump the gun
To start doing something too soon. 
 
[Middle English jumpen, to jump (sense uncertain).]