noun
metal box; safe; strongbox; cashbox
A sturdy metal container for storing valuables, money, or important documents. Often used in historical or formal contexts; in modern everyday language, 金庫 (きんこ) is more common for a safe.
See also: 金箱
寺の宝物は金櫃に納められていた。
The temple's treasures were kept in a metal strongbox.
帳簿を金櫃にしまって鍵をかけた。
I put the account books in the safe and locked it.