(n.) A book in which is kept a register of money received or paid out.

Domesday Book account book accounts payable ledger accounts receivable ledger address book adversaria album annual appointment calendar appointment schedule balance sheet bank ledger bankbook blankbook blotter books calendar card ledger catalog classified catalog commonplace book cost card cost ledger cost sheet court calendar daybook desk calendar diary diptych docket engagement book factory ledger inventory journal ledger log logbook loose-leaf notebook memo book memorandum book memory book notebook pad passbook petty cashbook pocket notebook pocketbook police blotter purchase ledger record book register registry sales journal sales ledger scrapbook scratch pad spiral notebook stock ledger stores ledger suspense ledger table tablet triptych workbook writing tablet yearbook