5
informer(noun, gossip, sneak, reporter, rat)
3
betrayer(noun, sneak, informant, squealer)
3
fink(noun, gossip, sneak, informer, rat)
2
sneak(noun, informant, squealer)
2
squealer(noun, gossip, sneak, informer, rat)
2
stoolie(noun, gossip, sneak, informer, rat)
2
tattletale(noun, gossip, sneak, informant, squealer)
1
Judas
1
accuser(sneak, herald, informant, squealer, announcer)
1
blab(finger, sneak, herald, informer, snake)
1
blabber
1
blabbermouth(noun, gossip, sneak, rat, canary)
1
canary(gossip, finger, sneak, rat, informant)
1
crier(sneak, herald, informer, snake, canary)
1
deep throat(expression, sneak, canary, informant, palaver)
1
double-crosser(sneak, informant, squealer)
1
fat mouth(expression, gossip, informer, rat, canary)
1
finger(sneak, herald, informer, snake, informant)
1
fork tongue(expression, finger, sneak, herald, informer)
1
grass(noun, sneak, informant, squealer)
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APASmart Define. (2013). ratfink thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ratfink/thesaurus/synonyms
ChicagoSmart Define. 2013. "ratfink thesaurus" https://smartdefine.org/ratfink/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, ratfink thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ratfink/thesaurus/synonyms>.
MLASmart Define. "ratfink thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/ratfink/thesaurus/synonyms>