Synonyms|46Antonyms|0|Broader|0Narrower|0Related|0
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investigator(noun, person)
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police
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researcher
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snooper
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tester
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undercover cop
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15 years ago|334 views|share |citing 
APASmart Define. (2011). plainclothes officer thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/plainclothes_officer/thesaurus/synonyms
ChicagoSmart Define. 2011. "plainclothes officer thesaurus" https://smartdefine.org/plainclothes_officer/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2011, plainclothes officer thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/plainclothes_officer/thesaurus/synonyms>.
MLASmart Define. "plainclothes officer thesaurus" 23 May 2011. Web. 28 September 2026. <https://smartdefine.org/plainclothes_officer/thesaurus/synonyms>