Synonyms and related words :
KO, addle, amaze, anesthetize, appall, astonish, astound, awe, awestrike, bedaze, bedazzle, bemuse, benumb, besot, bewilder, blunt, boggle, bowl down, bowl over, chloroform, coldcock, confound, daze, dazzle, deaden, desensitize, dope, drug, dull, dumbfound, dumbfounder, etherize, faze, flabbergast, freeze, hebetate, horrify, kayo, knock out, knock senseless, knock stiff, knock unconscious, lay out, narcotize, nonplus, numb, obtund, overwhelm, palsy, paralyze, perplex, petrify, put to sleep, rattle, scare stiff, scare to death, shock, stagger, startle, strike dead, strike dumb, strike terror into, strike with wonder, stun, surprise, terrify