v. 1. To slip by; go by; pass. We had so much fun that the weekend passed away before we realized it. Forty years had passed away since they had met. 2. To cease to exist; end; disappear; vanish When automobiles became popular, the use of the horse and buggy passed away. 3. To have your life stop; die. He passed away at eighty.
Synonym: PASS ON 3 , PASS OUT 3 .