Spycraft is the art of espionage and intelligence gathering. There are various synonyms for the term spycraft. Some of the most commonly used synonyms are espionage, intelligence, undercover work, surveillance, snooping, clandestine operations, covert operations, and counterintelligence. Espionage refers to the act of gathering intelligence by spying on an individual or a group of individuals. Intelligence work, on the other hand, involves the collection and analysis of information. Undercover work and surveillance involve observing and monitoring a target in secrecy. Clandestine operations and covert operations refer to secret missions carried out by spies. Counterintelligence refers to the activities undertaken to prevent others from gathering information about a target.