This is the 2975th most frequent Korean word.
출신이
"Origin" or "background."
In this sentence, '출신이' indicates the person's origin or birthplace.
저는 서울 출신이에요.
I am from Seoul.
Here, '출신이' refers to the background or educational affiliation.
그는 대학교 출신이 아니라 독학으로 공부했어요.
He is not from a university background; he studied on his own.
In this sentence, '출신이' is used to indicate the actor's educational or institutional association.