/ Dictionary / Index B bros.: Meaning and Definition of Find definitions for: bros. Pronunciation: [key] brothers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. broomy brose 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