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

stun \stun\, v. t. imp.  p. p. stunned; p. pr.  vb. n.
   stunning. oe. stonien, stownien; either fr. as. stunian
   to resound cf. d. stenen to groan, g. st"ohnen, icel.
   stynja, gr. ?, skr. stan to thunder, and e. thunder, or from
   the same source as e. astonish. root168.
   1. to make senseless or dizzy by violence; to render
      senseless by a blow, as on the head.
      1913 webster

            one hung a poleax at his saddlebow,
            and one a heavy mace to stun the foe. --dryden.
      1913 webster

   2. to dull or deaden the sensibility of; to overcome;
      especially, to overpower one's sense of hearing.
      1913 webster

            and stunned him with the music of the spheres.
                                                  --pope.
      1913 webster

   3. to astonish; to overpower; to bewilder.
      1913 webster

            william was quite stunned at my discourse. --de foe.
      1913 webster
see also:
stunned stunning 

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

stun \stun\, n.
   the condition of being stunned.
   1913 webster

[3] : WordNet (r) 2.0

stun
     v 1: make senseless or dizzy by or as if by a blow; "stun fish"
          syn: stupefy
     2: surprise greatly; knock someone's socks off; "i was floored
        when i heard that i was promoted" syn: shock, floor,
        ball over, blow out of the water, take aback
     3: hit something or somebody as if with a sandbag syn: sandbag
     4: overcome as with astonishment or disbelief; "the news
        stunned her" syn: bedaze, daze
     also: stunning, stunned
see also:
stupefy shock floor ball over blow out of the water take aback 
sandbag bedaze daze stunning stunned 

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

94 moby thesaurus words for "stun":
   ko, amaze, anesthetize, appall, astonish, astound, awake the dead,
   awe, awestrike, bedaze, bedazzle, bemuse, benumb, besot, bewilder,
   blast, blast the ear, blunt, boggle, boom, bowl down, bowl over,
   chloroform, coldcock, confound, crash, crescendo, daze, dazzle,
   deaden, deafen, desensitize, din, discombobulate, dope, drug, dull,
   dumbfound, dumbfounder, electrify, etherize, fill the air,
   flabbergast, freeze, frighten, horrify, jar, jolt, kayo, knock out,
   knock senseless, knock stiff, knock unconscious, lay out,
   narcotize, nonplus, numb, obtund, overcome, overwhelm, palsy,
   paralyze, peal, perplex, petrify, put to sleep, rattle the windows,
   rend the air, rend the ears, resound, ring, rise, rock the sky,
   scare stiff, scare to death, shake, shake up, shock,
   split the eardrums, split the ears, stagger, startle,
   startle the echoes, strike dead, strike dumb, strike terror into,
   strike with wonder, stupefy, surge, surprise, swell, take aback,
   terrify, thunder

Stun >> S Words
Stun, definition of term: Stun
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