1
gawker(noun, witness, proof, testimony, observer)
1
gazed
1
gazer-on
1
girl-watcher
1
goggler
1
guardsman
1
informer(noun, plant, agent, operative, mole)
1
inside agent(noun, expression, plant, agent, operative)
1
inspector
1
intelligencer(noun, plant, agent, operative, informer)
1
invigilator
1
janitorial
1
kibitzer
1
lookout man
1
lurker
1
mantrap
1
mole(noun, plant, agent, operative, informer)
1
monitorer
1
night watchman
1
noticer
11 years ago|6.3k views|share |citing 
APASmart Define. (2015). watcher thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/watcher/thesaurus/synonyms
ChicagoSmart Define. 2015. "watcher thesaurus" https://smartdefine.org/watcher/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, watcher thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/watcher/thesaurus/synonyms>.
MLASmart Define. "watcher thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/watcher/thesaurus/synonyms>