/ Dictionary / Index C cider vinegar: Meaning and Definition of Find definitions for: ci'der vin'egar Pronunciation: [key] vinegar produced by fermentation of cider. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cider press ci-devant* Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language