7
approve(verb, support, state, praise, favor)
7
avow(verb, state, hold, press, maintain)
7
back(verb, support, hold, show, maintain)
7
depose(verb, phrasal verb, law, state, give)
7
display(verb, make, mean, show, mark)
7
sustain(verb, support, show, determine, praise)
7
uphold(verb, support, state, show, press)
7
vouch for(verb, expression, phrasal verb, support, show)
6
adduce(verb, name, recall, evidence, extract)
6
asseverate(verb, state, hold, maintain, oppose)
6
document(noun, verb, show, determine, confirm)
6
maintain(verb, support, state, hold, press)
6
profess(verb, state, hold, press, maintain)
5
bespeak(verb, state, make, give, mean)
5
betoken(verb, state, give, mean, show)
5
depone(verb, phrasal verb, law, state, give)
5
establish(verb, support, state, show, present)
5
express(verb, make, mean, show, mark)
5
illustrate(verb, make, mean, show, mark)
5
proclaim(verb, name, state, show, press)
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APASmart Define. (2015). attest thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/attest/thesaurus/synonyms
ChicagoSmart Define. 2015. "attest thesaurus" https://smartdefine.org/attest/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, attest thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/attest/thesaurus/synonyms>.
MLASmart Define. "attest thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/attest/thesaurus/synonyms>