47 entries under noun topic. ×
| foreign agent(expression, plant, agent, operative) | |
| informer(plant, agent, operative, mole) | |
| inside agent(expression, plant, agent, operative) | |
| intel(expression, information, intelligence, data) | |
| intelligencer(plant, agent, spy, operative) | |
| investigator(plant, agent, operative, informer) | |
| lookout(plant, agent, operative, informer) | |
| mole(plant, agent, operative, informer) | |
| observer(plant, agent, operative, informer) | |
| operative(plant, agent, mole, infiltrator) | |
| patrol(plant, agent, operative, informer) | |
| picket(plant, agent, operative, informer) | |
| plant(agent, operative, informer, mole) | |
| scout(plant, agent, operative, informer) | |
| secret agent(expression, plant, agent, operative) | |
| sleeper(plant, agent, spy, operative) | |
| sleuth(plant, agent, operative, informer) | |
| snoop(plant, agent, operative, informer) | |
| spook(plant, agent, operative, informer) | |
| spotter(plant, agent, spy, operative) |
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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> |