3
blab(noun, gossip, sneak, reporter, snake)
3
communicant
3
delator
3
detective(noun, information, plant, agent, operative)
3
gossip(noun, person, rat, canary, tattle)
3
gossipmonger(noun, gossip)
3
judas
3
messenger(noun, information, sneak, reporter, informant)
3
newsmonger(information, gossip, canary, tattle, palaver)
3
plant(noun, source, agent, spy, operative)
3
stool-pigeon
2
whistle-blower(source, spy, grass, sneak, rascal)
2
Benedict Arnold(noun, expression, spy, rat, turncoat)
2
Judas(spy, turncoat, conspirator)
2
advisor
2
agent(noun, plant, opposition, villain, rebel)
2
bigmouth
2
blackleg
2
bum
2
busybody(gossip, rat, canary, tattle, tattler)
11 years ago|10k views|share |citing 
APASmart Define. (2015). informer thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/informer/thesaurus/synonyms
ChicagoSmart Define. 2015. "informer thesaurus" https://smartdefine.org/informer/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, informer thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/informer/thesaurus/synonyms>.
MLASmart Define. "informer thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/informer/thesaurus/synonyms>