/ Dictionary / Index R Roca: Meaning and Definition of Find definitions for: Ro•ca Pronunciation: (rō'ku Port. rô'ku), [key] a cape in W Portugal, near Lisbon: the western extremity of continental Europe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. roc rocaille 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