/ Dictionary / Index R rateable: Meaning and Definition of Find definitions for: rate•a•ble Pronunciation: (rā'tu-bul), [key] — adj. ratable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rateable (Thesaurus) rate rate base Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language