/ Dictionary / Index R roster: Meaning and Definition of Find definitions for: ros•ter Pronunciation: (ros'tur), [key] — n. a list of persons or groups, as of military personnel or units with their turns or periods of duty. any list, roll, or register: a roster of famous scientists; a roster of coming events. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: roster (Thesaurus) Rostenkowski Rostock Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language