15
confirming(verb, adjective, approving, checking, authorizing)
9
affirming(verb, approval, proof, verification, endorsement)
9
substantiating(verb, adjective, checking, evincing, proving)
9
verifying(verb, adjective, approval, proof, verification)
8
authenticating(verb, approval, proof, specific, decisive)
7
certifying(verb, approving, affirming, authorizing, evincing)
7
confirmatory
7
corroborating(verb, adjective, approval, proof, verification)
7
corroborative
7
ratifying(verb, approving, affirming)
7
sanctioning(verb, approval, proof, verification, endorsement)
7
supporting(verb, approval, proof, verification, endorsement)
6
approving(verb, approving, affirming, authorizing)
6
collateral
6
confirmative
6
corroboratory
6
validatory
5
accepting(verb, approval, proof, verification, endorsement)
5
authorizing(verb, approval, proof, verification, endorsement)
5
endorsing(verb, approving, affirming)
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APASmart Define. (2015). validating thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/validating/thesaurus/synonyms
ChicagoSmart Define. 2015. "validating thesaurus" https://smartdefine.org/validating/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, validating thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/validating/thesaurus/synonyms>.
MLASmart Define. "validating thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/validating/thesaurus/synonyms>