/ Dictionary / Index B bo's'n: Meaning and Definition of Find definitions for: bo's'n Pronunciation: (bō'sun), [key] — n. boatswain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bo's'n (Thesaurus) bosky Bosnia 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