| rebuke | |
| remonstrate | |
| reporter(noun, agent, spy, sneak, informer) | |
| reprimand | |
| reproof | |
| roach | |
| roil | |
| roper(noun, agent, spy, police, informer) | |
| rub | |
| scold | |
| scout(noun, agent, spy, informer, reporter) | |
| scratch | |
| seducement | |
| sergeant(noun, agent, spy, police, informer) | |
| shadow(noun, agent, spy, informer, reporter) | |
| shamus(noun, agent, spy, police, informer) | |
| sheriff | |
| shill | |
| shoofly(noun, agent, spy, police, informer) | |
| singer(noun, sneak, herald, informer, snake) |
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| APA | Smart Define. (2015). nark thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nark/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nark thesaurus" https://smartdefine.org/nark/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, nark thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nark/thesaurus/synonyms>. |
| MLA | Smart Define. "nark thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/nark/thesaurus/synonyms> |