동생과

with a younger sibling

→ 동생
phrase Rare #20,398
with a younger sibling 동생 means a younger sibling, and 과 means “with” or “and.” Depending on context, this can also mean “and a younger sibling.”
KO: 동생과 함께 영화를 봤어요.
EN: I watched a movie with my younger sibling.

자네는 에바 브라운 동생과 결혼하지 않았나.

Didn't you marry Eva Braun's sister?

— 다운폴 (2004)