27 entries under infiltrator topic. ×
| sleuth(noun, plant, agent, operative, informer) | |
| snoop(noun, plant, agent, operative, informer) | |
| spook(noun, plant, agent, operative, informer) | |
| spotter(noun, plant, agent, spy, operative) | |
| spy(noun, person, plant, mole, sleeper) | |
| undercover agent(noun, expression, plant, agent, operative) | |
| watcher(noun, plant, agent, operative, informer) |
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| APA | Smart Define. (2015). secret service thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/secret_service/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "secret service thesaurus" https://smartdefine.org/secret_service/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, secret service thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/secret_service/thesaurus/synonyms>. |
| MLA | Smart Define. "secret service thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/secret_service/thesaurus/synonyms> |