/ Dictionary / Index B broad-based: Meaning and Definition of Find definitions for: broad-based Pronunciation: (brôd'bāst"), [key] — adj. involving participation or support by a broad spectrum of things or people: The senator had a broad-based campaign. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. broadband broad bean 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