1
sergeant(agent, spy, informer, reporter, gumshoe)
1
set eyes on(verb, expression, idiom, examine, discover)
1
shit
1
shoofly(agent, spy, informer, reporter, gumshoe)
1
shop
1
sleeper(noun, plant, agent, operative, informer)
1
slewfoot(agent, spy, informer, reporter, gumshoe)
1
snitch
1
spook(noun, plant, agent, spy, operative)
1
spot(noun, verb, examine, discover, watch)
1
stake out(verb, expression, examine, case, discover)
1
stalk(verb, pursue)
1
store detective
1
strive(verb, pursue)
1
take in(verb, expression, examine, discover, watch)
1
take note(verb, expression, examine, case, discover)
1
tester
1
track(verb, pursue)
1
tracker(noun, detective)
1
treasury agent
11 years ago|4.6k views|share |citing 
APASmart Define. (2015). sleuth thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sleuth/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleuth thesaurus" https://smartdefine.org/sleuth/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, sleuth thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sleuth/thesaurus/synonyms>.
MLASmart Define. "sleuth thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/sleuth/thesaurus/synonyms>