27 entries under plant topic. ×

1
secret service(noun, expression, agent, operative)
1
sleeper(noun, agent, spy, operative)
1
sleuth(noun, watch, guard, agent)
1
snoop(noun, agent, operative, informer)
1
spook(noun, agent, operative, informer)
1
undercover agent(noun, expression, watch, agent)
0
infiltrator(noun, mole)
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APASmart Define. (2015). spotter thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/spotter/thesaurus/synonyms
ChicagoSmart Define. 2015. "spotter thesaurus" https://smartdefine.org/spotter/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, spotter thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/spotter/thesaurus/synonyms>.
MLASmart Define. "spotter thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/spotter/thesaurus/synonyms>