/ Dictionary / Index R ruga: Meaning and Definition of Find definitions for: ru•ga Pronunciation: (r'gu), [key] — pl. -gae Usually,a wrinkle, fold, or ridge. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ruga (Thesaurus) rug rugalach Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language