/ Dictionary / Index S shipmate: Meaning and Definition of Find definitions for: ship•mate Pronunciation: (ship'māt"), [key] — n. a person who serves with another on the same vessel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shipmate (Thesaurus) shipmaster shipment Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language