12 entries under proof topic. ×

10
spectator(noun, person, see, awareness, witness)
7
witness(noun, fan, observer, spectator)
1
attestant(noun, witness, testimony, observer)
1
attestor(noun, witness, testimony, observer)
1
corroborator(noun, witness, testimony, observer)
1
deponent(noun, witness, testimony, observer)
1
gawker(noun, witness, testimony, observer)
1
rubbernecker(noun, witness, testimony, observer)
1
signatory(noun, witness, testimony, observer)
1
signer(noun, witness, testimony, observer)
1
testifier(noun, witness, testimony, observer)
1
testimony(noun, witness, observer, watcher)
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APASmart Define. (2016). looker-on thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/looker-on/thesaurus/synonyms
ChicagoSmart Define. 2016. "looker-on thesaurus" https://smartdefine.org/looker-on/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, looker-on thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/looker-on/thesaurus/synonyms>.
MLASmart Define. "looker-on thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/looker-on/thesaurus/synonyms>