Noun

• S: (n) spy (spy%1:18:00::), undercover agent (undercover_agent%1:18:00::) ((military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors)
• direct hyponym / full hyponym
• domain category
• has instance
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) spy (spy%1:18:01::) (a secret watcher; someone who secretly watches other people) "my spies tell me that you had a good time last night"

Verb

• S: (v) descry (descry%2:39:00::), spot (spot%2:39:00::), espy (espy%2:39:00::), spy (spy%2:39:00::) (catch sight of)
• S: (v) spy (spy%2:32:01::), stag (stag%2:32:01::), snoop (snoop%2:32:00::), sleuth (sleuth%2:32:00::) (watch, observe, or inquire secretly)
• direct hypernym / inherited hypernym / sister term
• entailment
• derivationally related form
• sentence frame
• S: (v) spy (spy%2:39:01::), sight (sight%2:39:00::) (catch sight of; to perceive with the eyes) "he caught sight of the king's men coming over the ridge"
• S: (v) spy (spy%2:32:00::) (secretly collect sensitive or classified information; engage in espionage) "spy for the Russians"