/ Dictionary / Index A able seaman: Meaning and Definition of Find definitions for: a'ble sea'man Pronunciation: [key] Also calledan experienced deck-department seaman qualified to perform routine sea duties. (in the British Navy and on British and U.S. merchant ships) a rating between ordinary seaman and leading seaman or boatswain's mate. Abbr.: A.B., AB Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ableism abloom Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language