Source : WordNet®

safety-deposit
     n : a fireproof metal strongbox (usually in a bank) for storing
         valuables [syn: {safe-deposit}, {safe-deposit box}, {safety
         deposit box}, {deposit box}, {lockbox}]

safety-deposit
     adj : safe for the storage of valuables; "kept the deed in his
           safe-deposit box at the bank" [syn: {safe-deposit}]