뭐가 있는지

what there is

→ 뭐+가
phrase Rare #13,728
what there is Used in an embedded question meaning “what exists” or “what is there.” 뭐가 is the conversational form of 무엇이, and 있는지 marks an uncertain or indirect question.
KO: 냉장고에 뭐가 있는지 확인해 봐.
EN: Check what’s in the refrigerator.

밖에 뭐가 있는지 몰라

I don't know what's outside.

— 그린랜드 2: 마이그레이션 (2026)

뭐가 있는지 모르겠네

I don't know what's there.

— 스테이션 7 (2017)

다락에 뭐가 있는지 정말 몰라요

I really don't know what's in the attic.

— 더 립 (2026)