KO, aerate, aerify, anesthetize, atomize, bedaze, benumb, besot, blunt, carbonate, chlorinate, chloroform, coldcock, deaden, desensitize, distill, dope, drug, dull, emit, etherify, evaporate, exhale, fluidize, fractionate, freeze, fume, fumigate, gasify, give off, hydrogenate, kayo, knock out, knock senseless, knock stiff, knock unconscious, lay out, narcotize, numb, obtund, oxygenate, palsy, paralyze, perfume, put to sleep, reek, send out, smoke, spray, steam, stun, stupefy, sublimate, sublime, vaporize, volatilize