/ Dictionary / Index R roc: Meaning and Definition of Find definitions for: roc Pronunciation: (rok), [key] — n. Arabian Myth. a bird of enormous size and strength. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: roc (Thesaurus) robustious Roca 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