27 entries under plant topic. ×

1
sleeper(noun, agent, operative, informer)
1
sleuth(noun, agent, operative, informer)
1
snoop(noun, agent, operative, informer)
1
spook(noun, agent, operative, informer)
1
undercover agent(noun, expression, agent, operative)
0
infiltrator(noun, mole)
0
operative(noun, agent, mole, infiltrator)
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APASmart Define. (2015). watcher thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/watcher/thesaurus/synonyms
ChicagoSmart Define. 2015. "watcher thesaurus" https://smartdefine.org/watcher/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, watcher thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/watcher/thesaurus/synonyms>.
MLASmart Define. "watcher thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/watcher/thesaurus/synonyms>