12 entries under ascertained topic. ×

13
established(verb, adjective, approved, confirmed, endorsed)
11
confirmed(verb, adjective, certain, substantial, real)
11
proven(verb, adjective, substantiated, proved)
11
substantiated(verb, adjective, truth)
10
certified(verb, adjective, affirmed, proved)
10
proved(verb, substantiated, proved, experimented)
7
ascertained(verb, proved)
7
checked(verb, examined, experimented)
7
demonstrated(verb, proved)
6
determined(verb, proved, experimented)
4
audited
3
assured(verb, affirmed)
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APASmart Define. (2015). verified thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/verified/thesaurus/synonyms
ChicagoSmart Define. 2015. "verified thesaurus" https://smartdefine.org/verified/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, verified thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/verified/thesaurus/synonyms>.
MLASmart Define. "verified thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/verified/thesaurus/synonyms>