Synonyms|36Antonyms|0|Broader|3Narrower|1Related|0
1
observer(noun, plant, agent, operative, informer)
1
patrol(noun, plant, agent, operative, informer)
1
picket(noun, plant, agent, operative, informer)
1
plant(noun, agent, spy, operative, informer)
1
secret service(noun, expression, plant, agent, operative)
1
sleeper(noun, plant, agent, spy, operative)
1
sleuth(noun, plant, agent, operative, informer)
1
snoop(noun, plant, agent, operative, informer)
1
spook(noun, plant, agent, operative, informer)
1
undercover agent(noun, expression, plant, agent, operative)
1
watcher(noun, plant, agent, operative, informer)
0
agent(noun, plant, operative, informer, mole)
0
counterspy
0
espionage
0
infiltrator(noun, plant, spy, mole)
0
undercover man
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APASmart Define. (2015). espionage agent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/espionage_agent/thesaurus/synonyms
ChicagoSmart Define. 2015. "espionage agent thesaurus" https://smartdefine.org/espionage_agent/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, espionage agent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/espionage_agent/thesaurus/synonyms>.
MLASmart Define. "espionage agent thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/espionage_agent/thesaurus/synonyms>