/ Dictionary / Index C CPI: Meaning and Definition of Find definitions for: CPI Pronunciation: [key] See cpi Pronunciation: [key] characters per inch. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cpi (Thesaurus) cpd. cpl. Related Content Daily Word Quiz: rarefied Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language