Counter-spy is a term used to describe an individual whose job is to detect and prevent espionage activities. However, there are several other words that could describe the same concept. The first synonym is spy. While a spy is someone who gathers information secretly for a government or organization, a counter-spy works against such activities. The second synonym is intelligence officer. This refers to an individual who collects and analyzes information from various sources to provide recommendations for the government or agency. A third synonym for counter-spy is security agent. This describes an individual who is responsible for safeguarding assets, people, and information from external threats.