[1] : The Collaborative International Dictionary of English v.0.48

overcome \o`vercome"\, v. t. imp. overcame; p. p.
   overcome; p. pr  vb. n. overcoming. as. ofercuman. see
   over, come, and cf. supervene.
   1913 webster
   1. to get the better of; to surmount; to conquer; to subdue;
      as, to overcome enemies in battle.
      1913 webster

            this wretched woman overcome
            of anguish, rather than of crime, hath been.
                                                  --spenser.
      1913 webster

   2. to overflow; to surcharge. obs. --j. philips.
      1913 webster

   3. to come or pass over; to spread over. obs.
      1913 webster

            and overcome us like a summer's cloud. --shak.
      1913 webster

   syn: to conquer; subdue; vanquish; overpower; overthrow;
        overturn; defeat; crush; overbear; overwhelm; prostrate;
        beat; surmount. see conquer.
        1913 webster
see also:
overcame overcome overcoming over come supervene 
conquer 

[2] : The Collaborative International Dictionary of English v.0.48

overcome \o`vercome"\, v. i.
   to gain the superiority; to be victorious. --rev. iii. 21.
   1913 webster

[3] : WordNet (r) 2.0

overcome
     adj : rendered powerless especially by an excessive amount or
           profusion of something; "a desk flooded with
           applications"; "felt inundated with work"; "too much
           overcome to notice"; "a man engulfed by fear"; "swamped
           by work" syn: flooded, inundated, overpowered, overwhelmed,
            swamped, engulfed
     v 1: win a victory over; "you must overcome all difficulties";
          "defeat your enemies"; "he overcame his shyness"; "she
          conquered here fear of mice"; "he overcame his
          infirmity"; "her anger got the better of her and she
          blew up" syn: get the better of, defeat
     2: get on top of; deal with successfully; "he overcame his
        shyness" syn: get over, subdue, surmount, master
     3: overcome, as with emotions or perceptual stimuli syn: overwhelm,
         overpower, sweep over, whelm, overtake
     4: overcome, usually through no fault or weakness of the person
        that is overcome; "heart disease can get the best of us"
        syn: get the best, have the best
     also: overcame
see also:
flooded inundated overpowered overwhelmed swamped engulfed 
get the better of defeat get over subdue surmount 
master overwhelm overpower sweep over whelm 
overtake get the best have the best overcame 

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

156 moby thesaurus words for "overcome":
   affected, all up with, beat, beaten, best, bested, better, blind,
   blind drunk, blotto, break, broken-down, brokenhearted, cap,
   confounded, conquer, crush, crushed, cut up, dash, dashed, deck,
   defeat, defeated, demoralize, demoralized, desolated, discomfited,
   done for, done in, down, drown, drub, exceed, excel, fallen, fixed,
   floor, floored, go one better, heart-stricken, heart-struck,
   heartbroken, helpless, hors de combat, hurdle, improve on,
   influenced, inundated, knock down, knock over, lambasted, lathered,
   lick, licked, master, moved, neurasthenic, on the skids, out,
   out cold, outdone, outlive, outweigh, overbalance, overbear,
   overborne, overexcited, overmaster, overmastered, overmatch,
   overmatched, overpass, overpower, overpowered, overridden, overset,
   overthrow, overthrown, overtop, overturn, overturned, overwhelm,
   overwhelmed, overwrought, panicked, paralyzed, passed out, perfect,
   predominate, preponderate, prevail, prevail over, prostrate,
   prostrated, psych out, put to rout, reduced to jelly, rise above,
   rout, routed, ruined, scattered, send flying, settled, shake,
   shaken, shot, shot to pieces, silence, silenced, skinned,
   skinned alive, speechless, stampeded, stiff, stoned, stricken,
   subdue, subdued, subjugate, suppress, surmount, surpass, throw,
   top, tower above, tower over, transcend, trimmed, trip, trip up,
   triumph, triumph over, trounced, trump, unbrace, under the table,
   undo, undone, unglued, unman, unmanned, unnerve, unnerved,
   unstring, unstrung, upset, vanquish, whelm, whelmed, whip, whipped,
   win, worst, worsted

Overcome >> O Words
Overcome, definition of term: Overcome
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