counterspy

coun·ter·spy

C0690300 (koun′tər-spī′)n. pl. coun·ter·spies A spy working in opposition to enemy espionage.

counterspy

(ˈkaʊntəˌspaɪ) n, pl -spies (Government, Politics & Diplomacy) a spy working against or investigating enemy espionage

coun•ter•spy

(ˈkaʊn tərˌspaɪ)

n., pl. -spies. a spy active in counterespionage. [1935–40]

Thesaurus

Noun

1.

counterspy - a spy who works against enemy espionagemolespy, undercover agent - (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors