/ Dictionary / Index D Decline and Fall of the Roman Empire, The*: Meaning and Definition of Find definitions for: Decline' and Fall' of the Ro'man Em'pire The Pronunciation: [key] a history in six volumes (1776–88) by Edward Gibbon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decline declinometer Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language