/ Dictionary / Index C counterintelligence: Meaning and Definition of Find definitions for: coun•ter•in•tel•li•gence Pronunciation: (koun"tur-in-tel'i-juns), [key] — n. the activity of an intelligence service employed in thwarting the efforts of an enemy's intelligence agents to gather information or commit sabotage. an organization engaged in counterintelligence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: counterintelligence (Thesaurus) counterinsurgency counterintuitive Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language