1. agents who work to detect and counteract the activities of enemy spies
Usage: plural of counterspy

Examples

• The counterspies successfully infiltrated the foreign intelligence network.
• Government counterspies work to protect national security secrets.
• The novel featured a thrilling chase between spies and counterspies.
• Counterspies must be skilled at detecting surveillance and deception.
• During the Cold War, counterspies played a crucial role in national defense.
• The agency recruited experienced counterspies to handle the sensitive operation.