WordNet (r) 3.0 (2006):

bankbook
    n 1: a record of deposits and withdrawals and interest held by
         depositors at certain banks [syn: bankbook, passbook]

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "bankbook":
   account book, accounts payable ledger, accounts receivable ledger,
   balance sheet, bank ledger, books, card ledger, cashbook,
   cost card, cost ledger, cost sheet, daybook, factory ledger,
   inventory, journal, ledger, log, logbook, passbook,
   purchase ledger, record book, register, registry, sales journal,
   sales ledger, stock ledger, stores ledger, suspense ledger



Bouvier's Law Dictionary, Revised 6th Ed (1856):

BANKBOOK ,commerce. A book which persons dealing with a bank keep, in which
the officers of the bank enter the amount of money deposited by them, and
all notes or bills deposited by them, or discounted for their use.