/ Dictionary / Index B black book: Meaning and Definition of Find definitions for: black' book" Pronunciation: [key] a book of names of people liable to censure or punishment. in disfavor with someone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blackbody black bottom Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language