40 entries under noun topic. ×

17
witness(person, fan, observer, spectator)
17
spectator(person, see, awareness, witness)
17
bystander(person, see, awareness, witness)
15
eyewitness(person, witness, fan, observer)
15
looker-on(person, see, awareness, witness)
15
observer(person, see, awareness, witness)
15
watcher(person, see, awareness, witness)
13
beholder(person, see, awareness, witness)
13
viewer(person, witness, fan, testimony)
5
looker
4
gazer
4
passerby
4
perceiver
3
audience
3
sightseer(person, spectator)
1
passer-by
1
attestant(witness, proof, testimony, observer)
1
attestor(witness, proof, testimony, observer)
1
corroborator(witness, proof, testimony, observer)
1
deponent(witness, proof, testimony, observer)
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APASmart Define. (2016). onlooker thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/onlooker/thesaurus/synonyms
ChicagoSmart Define. 2016. "onlooker thesaurus" https://smartdefine.org/onlooker/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, onlooker thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/onlooker/thesaurus/synonyms>.
MLASmart Define. "onlooker thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/onlooker/thesaurus/synonyms>