WordNet (r) 3.0 (2006):

go on
    v 1: continue a certain state, condition, or activity; "Keep on
         working!"; "We continued to work into the night"; "Keep
         smiling"; "We went on working until well past midnight"
         [syn: continue, go on, proceed, go along, keep]
         [ant: discontinue]
    2: come to pass; "What is happening?"; "The meeting took place
       off without an incidence"; "Nothing occurred that seemed
       important" [syn: happen, hap, go on, pass off,
       occur, pass, fall out, come about, take place]
    3: move forward, also in the metaphorical sense; "Time marches
       on" [syn: advance, progress, pass on, move on, march
       on, go on] [ant: draw back, move back, pull away,
       pull back, recede, retire, retreat, withdraw]
    4: continue talking; "I know it's hard," he continued, "but
       there is no choice"; "carry on--pretend we are not in the
       room" [syn: continue, go on, carry on, proceed]
    5: start running, functioning, or operating; "the lights went
       on"; "the computer came up" [syn: go on, come up, come
       on] [ant: go off]

Moby Thesaurus II by Grady Ward, 1.0:

293 Moby Thesaurus words for "go on":
   abide, acquit, act, advance, assault, attack, babble, barbarize,
   batter, be getting along, be livid, be pissed, be so, be such,
   bear, behave, bide, blab, blabber, blather, blether, bluster, boil,
   browned off, brutalize, burn, butcher, buzz off, carry, carry on,
   cease not, chafe, chat, chatter, clack, clatter, clear,
   clear the hurdle, come along, come away, come on, come out,
   come through, comport, conduct, continue, continue to be, contrive,
   cover ground, crawl, creep, cut the mustard, cut up, cut up rough,
   defeat time, defy time, demean, depart, deport, destroy, dither,
   do, drag, drag along, drag on, dwell, elapse, endure, engineer,
   exist, exit, expire, extend, fare, flit, flow, flow on, fly, fret,
   fume, gab, gabble, gain ground, gang along, gas, gather head,
   gather way, get ahead, get along, get away, get by, get off,
   get on, get under way, gibber, gibble-gabble, glide, go, go ahead,
   go along, go away, go by, go fast, go forward, go off, go on with,
   gossip, gush, hack it, hammer, hang in, hang on, hang tough,
   have a conniption, haver, hell around, hold, hold on, hold out,
   hold steady, horse around, jabber, jaw, jog on, keep, keep at,
   keep at it, keep driving, keep going, keep on, keep trying,
   keep up, lapse, last, last long, last out, lay waste, leave,
   linger, linger on, live, live on, live through, loot, maffick,
   maintain, make good time, make head against, make headway, make it,
   make out, make progress, make progress against, make strides,
   make the grade, make up leeway, manage, manage somehow, march off,
   maul, misbehave, mosey, move, move away, move forward, move off,
   move out, muddle through, mug, natter, negotiate, never cease,
   never say die, not accept compromise, palaver, pass, pass along,
   pass by, pass on, patter, perdure, perennate, persevere, persist,
   pillage, pissed off, pour forth, prate, prattle, press on, prevail,
   proceed, progress, pull out, put over, put through, quit, rage,
   raise Cain, raise hell, raise sand, raise the deuce,
   raise the devil, raise the roof, ramble on, ramp, rampage, rant,
   rant and rave, rape, rattle, rattle on, rave, reel off, remain,
   riot, roar, roll, roll on, roughhouse, ruin, run, run its course,
   run on, run out, sack, sashay, sashay off, savage, scrape along,
   see it through, seethe, shape up, simmer, sizzle, slaughter, slide,
   slip, slog on, smoke, smolder, sow chaos, spout, spout off,
   stack up, stagger along, stagger on, stand, stay, stay on, stem,
   step forward, stew, stick it out, stick to it, storm, subsist,
   succeed in, survive, sustain, swing, swing the deal, take flight,
   take on, take wing, talk away, talk nonsense, talk on, tarry, tear,
   tear around, terrorize, throw a fit, tide over, tittle-tattle,
   toddle along, travel, turn out, twaddle, twattle, up and go,
   vandalize, violate, waffle, wear, wear on, wear well, whoop it up,
   wing it, worry along, wreck, yak, yakkety-yak