1. a spy who works to detect and counteract the activities of enemy spies

Examples

• The counterspy infiltrated the enemy organization to gather intelligence.
• Government agencies employ counterspies to protect national security.
• The novel featured a skilled counterspy who exposed a network of foreign agents.
• During the Cold War, counterspies played crucial roles in intelligence operations.
• The counterspy’s mission was to identify and neutralize enemy operatives.
• She worked as a counterspy for over a decade before retiring.
• The counterspy used sophisticated techniques to detect surveillance.