80 entries under proof topic. ×

6
indication(noun, information, mark, sign, hint)
5
demonstration(noun, information, mark, sign, reason)
5
endorsement(noun, permit, record, indication, sanction)
5
warrant(noun, information, reason, agreement, true)
4
approval(noun, verification, affirmation, endorsement)
4
sanction(noun, permit, authorization, verification)
3
averment(noun, communication, information, mark, sign)
3
information(noun, mark, sign, reason, speech)
3
manifestation(noun, information, mark, sign, hint)
2
authorization(noun, permit, impression, warrant)
2
clincher(noun, information, mark, sign, reason)
2
mark(noun, information, sign, hint, suggestion)
2
proving(verification, endorsement, authentication, substantiation)
2
record(noun, information, reason, permit, picture)
2
sign(noun, information, mark, hint, suggestion)
2
signature(indication, confirmation, substantiation)
2
smoking gun(noun, expression, information, mark, sign)
2
stamp of approval(expression, idiom, statement, contention)
2
visa(verification, endorsement, authentication, substantiation)
1
acceptance(verification, endorsement, authentication, substantiation)
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APASmart Define. (2015). attestation thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/attestation/thesaurus/synonyms
ChicagoSmart Define. 2015. "attestation thesaurus" https://smartdefine.org/attestation/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, attestation thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/attestation/thesaurus/synonyms>.
MLASmart Define. "attestation thesaurus" 29 September 2015. Web. 23 September 2026. <https://smartdefine.org/attestation/thesaurus/synonyms>