v. , informal 1. To lose consciousness; faint. She went back to work while she was still sick, and finally she just passed out.
Compare: GIVE OUT 3 . 2. or slang pass out cold To drop into a drunken stupor; become unconscious from drink. After three drinks, the man passed out. 3. To die. Life came and went weakly in him for hours after surgery; then he passed out.
Synonym: PASS AWAY 3 , PASS ON 3 .