Definitions
1.VerbTo faint; to become unconscious."I pass out at the sight of blood.; I passed out on the train after drinking a bottle of vodka."
2.VerbTo fall asleep irrespective of wilful action, as a result of the consumption of alcohol or other drugs or another form of physiological exhaustion.
3.VerbTo distribute."We'll pass out copies of the agenda."
4.VerbTo graduate, usually marked by a ceremony at the end of training.
5.VerbTo become proficient in a particular job or task.
6.VerbTo graduate from university."He passed out of the Madras University in 1990."
7.VerbTo end (a round) by having passes as the first four bids.
8.VerbUsed other than figuratively or idiomatically: see pass, out.