/ Dictionary / Index B Braintree: Meaning and Definition of Find definitions for: Brain•tree Pronunciation: (brān'trē"), [key] — n. a town in E Massachusetts, near Boston. 36,337. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. brainteaser brain trust 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