/ Dictionary / Index R ruble: Meaning and Definition of Find definitions for: ru•ble Pronunciation: (r'bul), [key] — n. a silver or copper-alloy coin and monetary unit of Russia, the Soviet Union, and its successor states, equal to 100 kopecks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ruble (Thesaurus) rubious ruboff Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language