/ Dictionary / Index B boatswain bird: Meaning and Definition of Find definitions for: boat'swain bird" Pronunciation: [key] tropicbird. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. boatswain boatswain's chair Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language