/ Dictionary / Index B Boyne: Meaning and Definition of Find definitions for: Boyne Pronunciation: (boin), [key] — n. a river in E Ireland: William III defeated James II near here 1690. 70 mi. (110 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: boyne (Thesaurus) Boyle's law Boynton Beach 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