undercover agent

Definitions of undercover agent
1

n (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors

Synonyms:
spy
Examples:
Margarete Gertrud Zelle
Dutch dancer who was executed by the French as a German spy in World War I (1876-1917)
Types:
show 6 types...
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counterspy, mole
a spy who works against enemy espionage
double agent
a spy who works for two mutually antagonistic countries
espionage agent
someone employed to spy on another country or business competitor
foreign agent
a spy for a foreign country
infiltrator
someone who takes up a position surreptitiously for the purpose of espionage
sleeper
a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal
Type of:
intelligence agent, intelligence officer, operative, secret agent
a person secretly employed in espionage for a government

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