/ Dictionary / Index D Doomsday Book*: Meaning and Definition of Find definitions for: Dooms'day Book" Pronunciation: (dmz'dā"). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. doomsday doomsdayer Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language