/ Dictionary / Index R raia: Meaning and Definition of Find definitions for: ra•ia Pronunciation: (rä'yu, rī'u), [key] — n. rayah. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rai raid Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language