(n.) A book in which accounts are kept.

Domesday Book account book adversaria album annual appointment calendar appointment schedule blankbook blotter calendar cashbook catalog classified catalog commonplace book court calendar daybook desk calendar diary diptych docket engagement book journal ledger log logbook loose-leaf notebook memo book memorandum book memory book notebook pad petty cashbook pocket notebook pocketbook police blotter scrapbook scratch pad spiral notebook table tablet triptych workbook writing tablet yearbook