[1] : WordNet (r) 2.0

go up
     v 1: move upward; "the fog lifted"; "the smoke arose from the
          forest fire"; "the mist uprose from the meadows" syn: rise,
           lift, arise, move up, come up, uprise ant:
          descend
     2: increase in value or to a higher point; "prices climbed
        steeply"; "the value of our house rose sharply last year"
        syn: rise, climb
     3: move towards; "we were approaching our destination"; "they
        are drawing near"; "the enemy army came nearer and nearer"
        syn: approach, near, come on, draw near, draw
        close, come near
     4: be erected, built, or constructed; "new buildings are going
        up everywhere"
     5: go upward with gradual or continuous progress; "did you ever
        climb up the hill behind your house?" syn: climb, climb
        up, mount
     6: burn completely; be consumed or destroyed by fire; "the hut
        burned down"; "the mountain of paper went up in flames"
        syn: burn down, burn up
     7: travel up, "we ascended the mountain"; "go up a ladder";
        "the mountaineers slowly ascended the steep slope" syn: ascend
        ant: descend
see also:
rise lift arise move up come up uprise 
descend climb approach near come on 
draw near draw close come near climb up mount 
burn down burn up ascend 

[2] : Moby Thesaurus II by Grady Ward, 1.0

79 moby thesaurus words for "go up":
   accrue, accumulate, advance, appreciate, arise, ascend, balloon,
   be ruined, become insolvent, bloat, boom, break, breed, broaden,
   bust, collapse, come up, crash, crescendo, curl upwards, develop,
   fail, fold, fold up, gain, gain strength, get ahead, go bankrupt,
   go broke, go into receivership, go to glory, go to hell,
   go to perdition, go to pot, go to ruin, go to shivers, go to smash,
   go to smithereens, go under, go wrong, grow, grow up, increase,
   intensify, levitate, loom, mount, multiply, proliferate, rear,
   rear up, rise, rise up, run up, shoot up, shut down, snowball,
   spiral, spire, spread, stand up, strengthen, surge, swarm up,
   sweep up, swell, tower, up, upgo, upgrow, upheave, uprise, upspin,
   upstream, upsurge, upswarm, upwind, wax, widen

Act Up >> A Words
Act Up, definition of term: Act Up
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