n.[U]

1. 被遺忘，淹沒
   Many ancient cities have long since passed into oblivion.

   許多古代的城市早已淹沒。

2. 遺忘，失去感覺
   I sank back into oblivion.

   我又什麼都感覺不到了。

3. 【律】大赦，赦免

n.

1. the state of being unaware of what is happening around one.
2. the state of being forgotten.
3. destruction or extinction.
4. Law,  historical amnesty or pardon.