treasure chest; strongbox
A box for storing valuables; can be literal (pirate treasure chest) or figurative (a collection of precious things).
The pirates buried a treasure chest on the beach.
My grandmother's chest of drawers is like a treasure chest to me.
Compound of 宝 (takara, 'treasure') and 箱 (hako, 'box'), with rendaku voicing of 箱 to ばこ.