1
coroner
1
dissector
1
double agent(noun, expression, plant, agent, operative)
1
emissary(noun, plant, agent, operative, mole)
1
enquirer
1
espionage agent(noun, expression, plant, agent, operative)
1
excavator
1
explorationist(noun, person, search, first)
1
fieldworker
1
foreign agent(noun, expression, plant, agent, operative)
1
fumbler
1
hotel detective
1
house detective
1
house dick
1
informer(noun, plant, agent, operative, mole)
1
inquiry agent
1
inside agent(noun, expression, plant, agent, operative)
1
intelligencer(noun, plant, agent, operative, informer)
1
lookout(noun, plant, agent, operative, informer)
1
path-breaker(noun, person, search, first)
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APASmart Define. (2015). investigator thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/investigator/thesaurus/synonyms
ChicagoSmart Define. 2015. "investigator thesaurus" https://smartdefine.org/investigator/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, investigator thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/investigator/thesaurus/synonyms>.
MLASmart Define. "investigator thesaurus" 17 December 2015. Web. 29 September 2026. <https://smartdefine.org/investigator/thesaurus/synonyms>