undercover agent

/ˌˈʌndərˌkʌvər ˌeɪdʒənt/

Other forms: undercover agents

Definitions of undercover agent

1. noun

   (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:

   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