/ Dictionary / Index C CLI: Meaning and Definition of Find definitions for: CLI Pronunciation: [key] cost-of-living index. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cli (Thesaurus) clew Cliburn Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language