Jump (?), n. [Cf. F. jupe a long petticoat, a skirt. Cf. Juppon.] (a) A kind of loose jacket for men. (b) pl.A bodice worn instead of stays by women in the 18th century.

Jump , v. i. [imp. & p. p. Jumped (?); p. pr. & vb. n.Jumping.] [Akin to OD. gumpen, dial. G. gumpen, jumpen.]

"1. To spring free from the ground by the muscular action of the feet and legs; to project ones self through the air; to spring; to bound; to leap."

Not the worst of the three but jumps twelve foot and a half by the square. Shak.

2. To move as if by jumping; to bounce; to jolt. "The jumping chariots." Nahum iii. 2.

A flock of geese jump down together. Dryden.

3. To coincide; to agree; to accord; to tally; -- followed by with. "It jumps with my humor." Shak.

To jump at, to spring to; hence, fig., to accept suddenly or eagerly; as, a fish jumps at a bait; to jump at a chance.

Jump (?), v. t.

1.To pass by a spring or leap; to overleap; as, to jump a stream.

2. To cause to jump; as, he jumped his horse across the ditch.

3. To expose to danger; to risk; to hazard. [Obs.]

To jump a body with a dangerous physic. Shak.

4. (Smithwork) (a) To join by a butt weld. (b) To thicken or enlarge by endwise blows; to upset.

5. (Quarrying) To bore with a jumper.

"To jump a claim, to enter upon and take possession of land to which another has acquired a claim by prior entry and occupation. [Western U. S. & Australia] See Claim, n., 3. -- To jump ones bail, to abscond while at liberty under bail bonds. [Slang, U. S.]"

Jump , n.

1. The act of jumping; a leap; a spring; a bound. "To advance by jumps." Locke.

2. An effort; an attempt; a venture. [Obs.]

Our fortune lies Upon thisjump. Shak.

3. The space traversed by a leap.

4. (Mining) A dislocation in a stratum; a fault.

5. (Arch.) An abrupt interruption of level in a piece of brickwork or masonry.

From the jump, from the start or beginning. [Colloq.] -- Jump joint. (a) A butt joint. (b) A flush joint, as of plank in carvel-built vessels. -- Jump seat. (a) A movable carriage seat. (b) A carriage constructed with a seat which may be shifted so as to make room for second or extra seat. Also used adjectively; as, a jump-seat wagon.

Jump , a. Nice; exact; matched; fitting; precise. [Obs.] "Jump names." B. Jonson.

Jump , adv. Exactly; pat.[Obs.] Shak.

-- Webster's unabridged 1913