What is the meaning of Oblivion?

The state of forgetting completely, of being oblivious, unconscious, unaware, as when sleeping, drunk, or dead.

The state of being completely forgotten, of being reduced to a state of non-existence, extinction, or nothingness, including through war and destruction. for an area like hell, a wasteland.

A form of purgatory.

Amnesty.

To consign to oblivion; to efface utterly.

oblivion (state of forgetting completely)

oblivion (state of being forgotten)

forgetfulness

Source: wiktionary.org