noun
previous existence; previous life
Refers to a life before the current one, often in a Buddhist or reincarnation context. Can also be used more loosely for a past era or former state of being.
彼は前の世の記憶があると言う。
He says he has memories of his previous life.
前の世では、私は別の人間だったのかもしれない。
In a previous existence, I might have been a different person.