24 entries under spy topic. ×

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sleuth(noun, watch, guard, lookout)
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spotter(noun, watch, guard, lookout)
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undercover agent(expression, watch, lookout)
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vanguard(noun, watch, guard, lookout)
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APASmart Define. (2013). investigating thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/investigating/thesaurus/synonyms
ChicagoSmart Define. 2013. "investigating thesaurus" https://smartdefine.org/investigating/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, investigating thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/investigating/thesaurus/synonyms>.
MLASmart Define. "investigating thesaurus" 17 June 2013. Web. 29 September 2026. <https://smartdefine.org/investigating/thesaurus/synonyms>