168 entries under noun topic. ×

16
affirmation(communication, information, mark, sign)
16
testimony(communication, information, mark, sign)
15
declaration(information, mark, knowledge, sign)
14
confirmation(information, mark, sign, reason)
13
corroboration(information, mark, sign, reason)
13
evidence(information, mark, sign, reason)
13
validation(information, reason, true, picture)
13
verification(information, reason, true, approval)
12
authentication(information, reason, true, permit)
12
avowal(claim, statement, evidence, declaration)
12
proof(information, mark, sign, true)
12
statement(speech, claim, evidence, declaration)
11
substantiation(information, mark, sign, reason)
10
assertion(claim, statement, declaration, confirmation)
9
certification(information, reason, agreement, permit)
9
deposition(communication, information, mark, sign)
9
testament(information, mark, sign, reason)
9
testimonial(information, mark, sign, true)
7
documentation(information, mark, sign, permit)
7
pronouncement(statement, declaration, confirmation, contention)
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APASmart Define. (2015). attestation thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/attestation/thesaurus/synonyms
ChicagoSmart Define. 2015. "attestation thesaurus" https://smartdefine.org/attestation/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, attestation thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/attestation/thesaurus/synonyms>.
MLASmart Define. "attestation thesaurus" 29 September 2015. Web. 27 September 2026. <https://smartdefine.org/attestation/thesaurus/synonyms>