Definition of counterintelligence in English:

counterintelligence

Syllabification: coun·ter·in·tel·li·gence
Pronunciation: /ˌkountərinˈteləjəns
 
/

noun

  • Activities designed to prevent or thwart spying, intelligence gathering, and sabotage by an enemy or other foreign entity.
    More example sentences
    • The Intelligence Corps also runs the ultra-secret counter-intelligence outfit the FRU, the Force Research Unit.
    • Swiss counter-intelligence was very effective, too, and 387 spies, mostly Swiss but including 100 Germans, were captured and brought to trial of whom 17 were executed.
    • Our counter-intelligence, which plays a considerable role here, is very fragmented.

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