Breadcrumb Home > Dictionary > Index A account book: Meaning and Definition of Find definitions for: account' book" Pronunciation: [key] a book in which personal or commercial accounts are recorded; ledger. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. accountant account current ✖ Related Content Daily Word Quiz: donnybrook Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language