[1] : WordNet (r) 2.0

upsurge
     n 1: a sudden forceful flow syn: rush, spate, surge
     2: a sudden or abrupt strong increase; "stimulated a surge of
        speculation"; "an upsurge of emotion"; "an upsurge in
        violent crime" syn: surge
see also:
rush spate surge 

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

127 moby thesaurus words for "upsurge":
   access, accession, accretion, accrual, accruement, accumulation,
   addition, advance, aggrandizement, amplification, anabasis,
   appreciation, arise, ascend, ascension, ascent, augment,
   augmentation, ballooning, bloating, boom, boost, broadening, build,
   buildup, clamber, climb, climbing, come up, crescendo,
   curl upwards, development, edema, elevation, enlarge, enlargement,
   escalade, expand, expansion, extension, flood, fountain, gain,
   go up, greatening, grow up, growth, gush, gyring up, heighten,
   hike, increase, increment, inflation, jet, jump, leap, levitate,
   levitation, loom, mount, mounting, multiplication, multiply,
   productiveness, proliferation, raise, rear, rear up, rise, rise up,
   rising, rocketing up, saltation, shooting up, snowballing, soaring,
   spiral, spire, spout, spread, spring, spurt, stand up, surge,
   swarm up, sweep up, swelling, takeoff, taking off, tower,
   tumescence, up, upclimb, upcoming, updraft, upgang, upgo, upgoing,
   upgrade, upgrow, upgrowth, upheave, uphill, upleap, uplift, upping,
   uprisal, uprise, uprising, uprush, upshoot, upslope, upspin,
   upstream, upsurgence, upswarm, upsweep, upswing, uptrend, upturn,
   upwind, vault, wax, waxing, widening, zooming

Upsurge >> U Words
Upsurge, definition of term: Upsurge
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