/ Dictionary / Index B Bn.: Meaning and Definition of Find definitions for: Bn. Pronunciation: [key] Baron. Battalion. bn. Pronunciation: [key] battalion. B.N. Pronunciation: [key] Bachelor of Nursing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. BMX BNA 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