45 entries under noun topic. ×
| snitch(verb, phrasal verb, law, knowledge) | |
| traitor(person, behavior, trust, informer) | |
| betrayer(person, behavior, trust, source) | |
| informer(law, person, knowledge, source) | |
| renegade(verb, person, abandon, approach) | |
| fink(verb, phrasal verb, law, knowledge) | |
| squealer(law, knowledge, slang, source) | |
| turncoat(approach, source, grass, sneak) | |
| defector(feature, person, approach, behavior) | |
| double-dealer(person, behavior, traitor, betrayer) | |
| recreant(person, approach, behavior, traitor) | |
| deserter(feature, person, approach, behavior) | |
| apostate(approach, tergiversation, traitor) | |
| rotter(sly, creep, rake, rogue) | |
| stoolie(law, knowledge, slang, source) | |
| blackleg(feature, person, behavior, tergiversation) | |
| double-crosser(person, trust, source, grass) | |
| ratter(person, behavior, traitor, betrayer) | |
| stool pigeon(expression, idiom, law, knowledge) | |
| stinker(rotten, dog, sly, creep) |
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| APA | Smart Define. (2015). rat thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rat/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rat thesaurus" https://smartdefine.org/rat/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, rat thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rat/thesaurus/synonyms>. |
| MLA | Smart Define. "rat thesaurus" 21 April 2015. Web. 26 September 2026. <https://smartdefine.org/rat/thesaurus/synonyms> |