0
sounding
0
soundings(watching, voyeurism)
0
speckle
0
speculation
0
spooking
0
spot
0
spy on(verb, phrasal verb)
0
staging
0
stain
0
staining
0
supervising
0
take notice(expression, idiom)
0
testing
0
tooting
0
undercover activities
0
undercover operations
0
underground activities
0
unearth
0
unmask
0
voluble
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APASmart Define. (2015). spying thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/spying/thesaurus/synonyms
ChicagoSmart Define. 2015. "spying thesaurus" https://smartdefine.org/spying/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, spying thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/spying/thesaurus/synonyms>.
MLASmart Define. "spying thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/spying/thesaurus/synonyms>