/ Dictionary / Index R Robert Guiscard: Meaning and Definition of Find definitions for: Ro•bert Guis•card Pronunciation: (Fr. rô-ber gē-skar'). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Roberta Roberts Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language