606 entries under noun topic. ×

3
page proof(expression, pass, blue, slip)
3
ratification(approval, evidence, confirmation, passage)
3
research
3
specimen(copy, evidence, occasion, occurrence)
3
standard(check, measure, approval, examination)
3
testing(struggle, examination, test, analysis)
3
touchstone(check, measure, approval, examination)
3
try(study, check, measure, struggle)
3
whyfor(cause, reason, base, call)
2
account(cover, cause, reason, case)
2
acquaintance(action, understanding, knowledge, experience)
2
ammunition
2
argumentation(reason, case, claim)
2
attempt(study, check, measure, struggle)
2
backing(support, action, base, beginning)
2
benchmark
2
blue book(expression, check, approval, examination)
2
cue(information, mark, sign, informal)
2
dope(information, mark, cause, knowledge)
2
exemplification(copy, situation, evidence, occasion)
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APASmart Define. (2015). proof thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/proof/thesaurus/synonyms
ChicagoSmart Define. 2015. "proof thesaurus" https://smartdefine.org/proof/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, proof thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/proof/thesaurus/synonyms>.
MLASmart Define. "proof thesaurus" 22 December 2015. Web. 26 September 2026. <https://smartdefine.org/proof/thesaurus/synonyms>