Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun lockbox

1 sense of lockbox

Sense 1
safe-deposit, safe-deposit box, safety-deposit, safety deposit box, deposit box, lockbox -- (a fireproof metal strongbox (usually in a bank) for storing valuables)
       => strongbox, deedbox -- (a strongly made box for holding money or valuables; can be locked)