Synonyms|208Antonyms|0|Broader|6Narrower|1Related|42

23 entries under operative topic. ×

1
spook(noun, plant, agent, spy)
1
undercover agent(noun, expression, plant, watch, agent)
1
watcher(noun, plant, agent, informer)
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APASmart Define. (2015). sleuth thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sleuth/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleuth thesaurus" https://smartdefine.org/sleuth/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, sleuth thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sleuth/thesaurus/synonyms>.
MLASmart Define. "sleuth thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/sleuth/thesaurus/synonyms>