/ Dictionary / Index S staff captain: Meaning and Definition of Find definitions for: staff' cap"tain Pronunciation: [key] a person who assists the master of a large ocean passenger vessel, being especially responsible for safety apparatus, fire and lifeboat drills, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Staffa staffer 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