48 entries under informer topic. ×

1
inside agent(noun, expression, plant, operative)
1
intelligencer(noun, plant, operative, mole)
1
lookout(noun, plant, warning, operative)
1
nark(spy, reporter, gumshoe, investigator)
1
observer(noun, plant, operative, mole)
1
patrol(noun, plant, warning, operative)
1
peeper(spy, reporter, gumshoe, investigator)
1
picket(noun, plant, warning, operative)
1
plainclothes officer(expression, spy, hound, police)
1
police officer(expression, spy, reporter, investigator)
1
private eye(noun, expression, spy, hound)
1
private investigator(expression, spy, reporter, gumshoe)
1
reporter(spy, gumshoe, investigator, dick)
1
roper(spy, reporter, gumshoe, investigator)
1
scout(noun, plant, warning, spy, operative)
1
secret service(noun, expression, plant, operative)
1
sergeant(spy, reporter, gumshoe, investigator)
1
shadow(spy, reporter, gumshoe, investigator)
1
shamus(spy, reporter, gumshoe, investigator)
1
shoofly(spy, reporter, gumshoe, investigator)
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APASmart Define. (2016). agent thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/agent/thesaurus/synonyms
ChicagoSmart Define. 2016. "agent thesaurus" https://smartdefine.org/agent/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, agent thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/agent/thesaurus/synonyms>.
MLASmart Define. "agent thesaurus" 1 March 2016. Web. 24 September 2026. <https://smartdefine.org/agent/thesaurus/synonyms>