/ Dictionary / Index C Central Valley: Meaning and Definition of Find definitions for: Cen'tral Val'ley Pronunciation: [key] the chief wine-producing region of California, centered in San Joaquin County. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Central Treaty Organization centre Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language