/ Dictionary / Index B B-29: Meaning and Definition of Find definitions for: B-29 Pronunciation: (bē'twen"tē nīn'), [key] — pl. B-29's. Superfortress. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. B-17 ba Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language