6 entries under expression topic. ×

6
double agent(noun, plant, agent, spy)
3
undercover agent(noun, plant, agent, spy)
2
espionage agent(noun, plant, agent, operative)
1
foreign agent(noun, plant, agent, operative)
1
inside agent(noun, plant, agent, operative)
1
secret service(noun, plant, agent, operative)
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APASmart Define. (2015). secret agent thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/secret_agent/thesaurus/synonyms
ChicagoSmart Define. 2015. "secret agent thesaurus" https://smartdefine.org/secret_agent/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, secret agent thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/secret_agent/thesaurus/synonyms>.
MLASmart Define. "secret agent thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/secret_agent/thesaurus/synonyms>