3
secret agent
3
shill(noun, informer)
3
sneaker
3
whistle-blower(noun, source, spy, grass, sneak)
2
agent provocateur(noun, informer)
2
blab(sneak, informant, squealer)
2
deep throat(noun, expression, source, grass, sneak)
2
source(noun, grass, sneak, decoy, informer)
2
telltale(gossip, sneak, informer, rat, canary)
2
turncoat(noun, source, spy, grass, sneak)
1
Benedict Arnold(noun, expression, spy, informer, rat)
1
Judas(spy, impostor, renegade, turncoat, hypocrite)
1
accuser(source, sneak, rat, informant, squealer)
1
adviser(sneak, informant, squealer)
1
announcer(source, sneak, rat, informant, squealer)
1
apostate(spy, impostor, renegade, turncoat, hypocrite)
1
back-stabber(spy, impostor, renegade, turncoat, hypocrite)
1
backslider(spy, impostor, renegade, turncoat, hypocrite)
1
beard
1
blabber
11 years ago|2k views|share |citing 
APASmart Define. (2015). stool pigeon thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stool_pigeon/thesaurus/synonyms
ChicagoSmart Define. 2015. "stool pigeon thesaurus" https://smartdefine.org/stool_pigeon/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, stool pigeon thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stool_pigeon/thesaurus/synonyms>.
MLASmart Define. "stool pigeon thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/stool_pigeon/thesaurus/synonyms>