1
rebuke
1
remonstrate
1
reporter(noun, agent, spy, sneak, informer)
1
reprimand
1
reproof
1
roach
1
roil
1
roper(noun, agent, spy, police, informer)
1
rub
1
scold
1
scout(noun, agent, spy, informer, reporter)
1
scratch
1
seducement
1
sergeant(noun, agent, spy, police, informer)
1
shadow(noun, agent, spy, informer, reporter)
1
shamus(noun, agent, spy, police, informer)
1
sheriff
1
shill
1
shoofly(noun, agent, spy, police, informer)
1
singer(noun, sneak, herald, informer, snake)
11 years ago|4.8k views|share |citing 
APASmart Define. (2015). nark thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nark/thesaurus/synonyms
ChicagoSmart Define. 2015. "nark thesaurus" https://smartdefine.org/nark/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, nark thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nark/thesaurus/synonyms>.
MLASmart Define. "nark thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/nark/thesaurus/synonyms>