Loss of consciousness due to the interruption of breathing and consequent anoxia.
Loss of consciousness due to the body's inability to deliver oxygen to its tissues, either by the breathing of air lacking oxygen or by the inability of the blood to carry oxygen.
The state of forgetting completely, of being oblivious, unconscious, unaware, as when sleeping, drunk, or dead.
A form of purgatory.
The state of being completely forgotten, of being reduced to a state of non-existence, extinction, or nothingness, including through war and destruction. (Figuratively) for an area like hell, a wasteland.
To consign to oblivion; to efface utterly.