/ Dictionary / Index B bor.: Meaning and Definition of Find definitions for: bor. Pronunciation: [key] borough. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. BOQ bora Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language