떠난

떠난

"떠난" means "left" or "departed."

Here, '떠난' functions as the past participle of the verb '떠나다' (to leave), indicating a completed action of leaving.

그는 이미 떠난 후였다.

He had already left.

In this case, '떠난' modifies '시간' to describe the time associated with the act of leaving, providing more specific information.

떠난 시간이 기회였다.

The time spent leaving was an opportunity.

Here, '떠난' serves as an adjective derived from the verb '떠나다', describing the friend who has left.

떠난 친구를 그리워한다.

I miss the friend who left.