Breadcrumb Home > Dictionary > Index B bell book: Meaning and Definition of Find definitions for: bell' book" Pronunciation: [key] — Naut. Naut. a book in which all orders affecting the main engines of a ship are recorded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bellbird bell-bottom ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language