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WORDNET DICTIONARY
THESAURUS

RELATED WORDS : broad jump bungee jump get the jump high jump hop, skip, and a jump hop, skip, and jump jump jump bail jump ball jump cut jump for joy jump in jump off jump out jump rope jump seat jump shot jump spark jump suit jump the gun jump up long jump parachute jump pole jump quantum jump ski jump triple jump water jump

WORDNET DICTIONARY

Verb jump on has 1 sense

• jump on(v = verb.motion) bestride, climb on, get on, hop on, mount, mount up - get up on the back of; "mount a horse"
is one way to move
Sample sentence:
Somebody ----s something

THESAURUS

jump on

asphyxiate, bottle up, call down, censor, choke off, clamp down on, come down on, cork, cork up, crack down on, crush, damp down, dress down, drown, extinguish, gag, give it to, hold down, jump all over, keep down, keep under, kill, muzzle, pour water on, put down, quash, quell, quench, repress, shut down on, silence, sit down on, sit on, smash, smother, speak to, squash, squelch, stanch, stifle, strangle, stultify, subdue, suffocate, suppress, talk to, tell off, throttle, trim

For further exploring for "jump on" in Webster Dictionary Online