4
hog
4
informant(noun, law, person, knowledge, source)
4
tipster(noun, law, knowledge, informal, source)
3
bum
3
secret agent
3
sneak(noun, source, spy, gossip, grass)
3
talebearer
3
weasel(noun, source, grass, sneak, informer)
3
whistle-blower(source, spy, grass, sneak, informer)
2
blab(sneak, informer, snake, informant)
2
blackleg
2
boar
2
bull
2
conspirator(spy, impostor, renegade, turncoat, hypocrite)
2
cop
2
crier(noun, sneak, informer, snake, informant)
2
crumb
2
fuzz
2
hogget
2
narc(source, grass, sneak, decoy, informer)
11 years ago|3.3k views|share |citing 
APASmart Define. (2015). squealer thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/squealer/thesaurus/synonyms
ChicagoSmart Define. 2015. "squealer thesaurus" https://smartdefine.org/squealer/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, squealer thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/squealer/thesaurus/synonyms>.
MLASmart Define. "squealer thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/squealer/thesaurus/synonyms>