safe-deposit box

safe-de·pos·it box

(sāf′dĭ-pŏz′ĭt)n. A fireproof metal box, usually in a bank vault, for the safe storage of valuables.

safe′-depos`it box`

n. a lockable metal box or drawer, esp. in a bank vault, for storing valuable items. Also called safe′ty-depos`it box`. [1880–85, Amer.]

Thesaurus

Noun

1.

safe-deposit box - a fireproof metal strongbox (usually in a bank) for storing valuablesdeposit box, lockbox, safe-deposit, safety deposit box, safety-depositdeedbox, strongbox - a strongly made box for holding money or valuables; can be locked