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