3. chaos, confusion, disarray, mix-up, muddle, fuddle, tangle, tumble, minglement.

jump, v. 1. spring, leap, hop, vault, bound, buck, pounce; skip, caper, Inf. hippety-hop, leapfrog; frolic, frisk, cavort, gambol, bob, bounce; high-jump, broad-jump, pole-vault; upleap, upswing, caracole, curvet, gambado.
2. rise up, start, start up, pop up, bob up, flinch, jump out of one's skin; startle, frighten, surprise; jerk, jolt, shock, jostle.
3. skip, miss, omit, neglect, leave out, cut; let pass, let slip, let dangle; pass by or over, bypass, overlook, gloss over, disregard, ignore.
4. parachute, sky-dive, bail out, eject, Inf. hit the silk, Brit. SI. make a brolly hop.
5. leap over, hurdle, steeplechase, clear, negotiate; overjump, go over, sail over, overleap, overshoot; make it over, pass over, flop over, shoot over.
6. anticipate, get ahead of, steal a march on, have the edge on, get the drop on; start before, go before, forego, jump the gun, misstart, get a headstart, get a jump on.
7. increase, raise, hike, Inf. jack up, boost, escalate, elevate, up; advance, accelerate, appreciate, augment, enlarge, extend; surge, rise, mount, ascend.
8. Informal, ambush, attack, assail, blitz; fall on, pounce on, descend on, set upon, swoop down on, come down on; Inf. bushwhack, Inf. mug, SI. hit.
9. jump at grab, grab at, snatch, swoop up, catch, reach for, jump on; get excited about, be enthusiastic about, be willing, be eager. 10. jump into join, enter into, get into, hop into; interrupt, burst in, SI. butt in, chime in, interject, intrude, put one's two cents in. 11.

jump off a. spring from, descend, detrain, alight, dismount, get down, get off; land, touch down, plop down.
b. launch, start, open, begin; set in, embark on, undertake, venture into. -n. 12. leap, spring, vault, hop, skip, caper, bound, buck; leapfrog, frolic, gambol, bounce, bob; high jump, long jump, broad jump, hop, skip and jump, running jump, pole vault; upleap, caracole, curvet, capriole, gambado; leaping, saltation, dancing, Ballet, entrechat, Ballet, jete. 13. hurdle, obstacle, fence, rail, hedge, Gymnastics. horse; obstruction, handicap, impediment. 14. gap, space, hole, hiatus, breach; interstice, interval, break, lacuna, interruption, caesura, elision; fissure, rift, cleft, scissure, slit, rent, rupture. 15. descent, parachuting, sky-dive, Brit. SI. brolly hop. 16. rise, boost, raise, increase; escalation, inflation, elevation, mounting, upsurge, upswing; ascent, advance, appreciation, augmentation. 17. start, jolt, jar, jostle, jerk; lurch, shock, bump, blow; shake, twitch, jiggle, quiver.

jumpy, adj. 1. skittish, fidgety, jittery, fluttery, nervy, edgy, on edge; shaky, quivery, itchy, scratchy, twitching; tremulous, trembling, quivering, aflutter, atremble, all of a twitter.
2. nervous, apprehensive, fretful; excited, anxious, disquieted, SI. uptight, uneasy, restive; fussing, unquiet, unsteady, unrelaxed, tense; scared, frightened, afraid, panicky, alarmed, funky; shy, timorous, timid, diffident.
3. saltatory, jerky, spastic, fitful, convulsive, spasmodic, by fits and starts; choppy, bumpy, joggling, jiggly, jolting, jarring, rough.

junction, n. 1. unification, accouplement, joinder; juxtaposition, collocation; joining, linking, splicing, uniting, binding, bonding, yoking; connecting, conjoining, coupling; meeting, touching, bordering, edging, abutting.