/ Dictionary / Index C CIA: Meaning and Definition of Find definitions for: CIA Pronunciation: [key] Central Intelligence Agency: the U.S. federal agency that coordinates governmental intelligence activities outside the United States. Cia. Pronunciation: [key] Company. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cia (Thesaurus) CI Ciano Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language