/ Dictionary / Index B bookseller: Meaning and Definition of Find definitions for: book•sell•er Pronunciation: (book'sel"ur), [key] — n. the owner or proprietor of a bookstore. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bookseller (Thesaurus) book scorpion book share Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language