4 entries under stool pigeon topic. ×

7
spy(noun, plant, mole, detective, intruder)
6
secret agent(noun, expression, idiom, plant, spy)
2
informer(noun, plant, spy, mole, detective)
2
squealer
11 years ago|3.2k views|share |citing 
APASmart Define. (2015). infiltrator thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/infiltrator/thesaurus/synonyms
ChicagoSmart Define. 2015. "infiltrator thesaurus" https://smartdefine.org/infiltrator/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, infiltrator thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/infiltrator/thesaurus/synonyms>.
MLASmart Define. "infiltrator thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/infiltrator/thesaurus/synonyms>