2
demonstrative(adjective, specific, decisive, conclusive)
2
endorsing(verb, approving)
2
legalizing
2
manifesting(verb, evincing)
2
notarizing(verb, authorizing)
2
permitting(verb, approving, authorizing)
2
testifying(verb, evincing)
2
validation(noun, approval, proof, confirmation, verification)
2
vouching(verb, evincing)
2
warranting(verb, authorizing)
2
witnessing(verb, evincing)
1
acceptance(noun, approval, proof, verification, endorsement)
1
accord(noun, approval, proof, verification, endorsement)
1
adducing(verb, evincing)
1
affirmation(noun, proof, verification, endorsement, authentication)
1
agreeing(verb, authorizing)
1
agreement(noun, approval, proof, verification, endorsement)
1
approbating(verb, approving)
1
approval(noun, proof, verification, endorsement, validation)
1
assent(noun, approval, proof, verification, endorsement)
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APASmart Define. (2013). authenticating thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/authenticating/thesaurus/synonyms
ChicagoSmart Define. 2013. "authenticating thesaurus" https://smartdefine.org/authenticating/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, authenticating thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/authenticating/thesaurus/synonyms>.
MLASmart Define. "authenticating thesaurus" 27 June 2013. Web. 20 September 2026. <https://smartdefine.org/authenticating/thesaurus/synonyms>