counterintelligence
UK/'kaʊntərɪn,telɪdʒəns/US/'kauntәrin,telidʒәns/
C2
Definitions
n.
Activities aimed at detecting and blocking enemy spying and sabotage
反情报；反间谍活动
Root Breakdown
Root-derivedcounter-against, in return
+
intelligencenot, opposite of
=counterintelligence
counter- (against) + intelligence (here = gathered information; inter- 'between' + leg 'gather/read'). Intelligence in the spy sense is information picked up about an enemy; counterintelligence is the work of countering the enemy's intelligence-gathering.
Example Sentences
- 1.
The agency's counterintelligence unit uncovered a network of foreign spies.