Akademik

a fireproof metal strongbox (usually in a bank) for storing valuables

a lockable metal box or drawer, esp. in a bank vault, used for safely storing valuable papers, jewelry, etc.

Also, safety-deposit box.

[1880-85, Amer.]

safe-deposit box UK US noun [countable] [singular safe-deposit box plural safe-deposit boxes] mainly american

a safety deposit box

Thesaurus: general words relating to banking_hyponym

noun, pl ⋯ boxes [count]

: a strong metal box in a bank that has a lock and that is used to store money or other valuable things — called also safety-deposit box