金庫

1. Origins, structure, and basic meaning

• Structure: 金庫 is read きんこ and means a safe or vault for storing money and valuables securely.
• Basic usage: Use it for the storage enclosure into which money is put or which is opened with a key.

2. Common pitfalls and similar expressions

• Particles for storage and removal
  • 金庫にしまう marks where something is put away.
  • 金庫から取り出す marks where something is taken out of.