금고에

in/to the safe

→ 금고
phrase Rare #28,761
in/to the safe 금고 means “safe” or “vault,” and 에 marks a location or destination.
KO: 서류를 금고에 넣었어요.
EN: I put the documents in the safe.

이걸 금고에 넣어 줄래요?

Could you put this in the safe?

— 타이타닉 (1997)

많은 사람들이 위층 금고에 돈을 맡겨 두고 있었다.

Many people had money deposited in the safe upstairs.