1. (v. i.) To sink into a fainting fit, in which there is an apparent suspension of the vital functions and mental powers; to faint; -- often with away.

2. (n.) A fainting fit; syncope.

KO black out blackout catalepsy catatonia catatony coma crap out die away drop drown encephalitis lethargica faint fall senseless gray out grayout high kayo keel over knockout lethargy lipothymia lipothymy narcohypnosis narcolepsy narcoma narcosis narcotic stupor narcotization nirvana nirvana principle nod nothingness oblivion obliviousness pass out sedation semiconsciousness senselessness shock sleep sleeping sickness sopor stupor succumb syncope thanatosis trance unconsciousness