31 Moby Thesaurus words for "strong room": Fort Knox, bank, bursary, cash register, cashbox, chest, coffer, coin box, depository, exchequer, fisc, gold depository, locker, money chest, penny bank, piggy bank, pork barrel, public crib, public till, public treasury, public trough, repository, safe, safe-deposit box, storehouse, strongbox, subtreasury, till, treasure-house, treasury, vault