26
testify(verb, law, support, state, make)
21
affirm(verb, support, state, hold, show)
19
certify(verb, support, state, show, maintain)
19
confirm(verb, support, state, show, maintain)
17
bear witness(verb, expression, idiom, law, state)
17
prove(verb, support, state, make, mean)
17
verify(verb, support, state, show, determine)
16
corroborate(verb, support, state, show, determine)
16
witness(verb, law, support, state, make)
15
demonstrate(verb, state, make, mean, show)
14
assert(verb, state, hold, show, present)
14
declare(verb, state, hold, show, press)
14
manifest(verb, state, make, mean, show)
13
authenticate(verb, support, state, show, determine)
13
evidence(verb, support, show, maintain, determine)
13
ratify(verb, support, state, show, maintain)
13
substantiate(verb, support, show, determine, back)
13
show(verb, state, make, mark, present)
12
aver(verb, support, state, hold, show)
12
warrant(verb, support, state, show, press)
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APASmart Define. (2015). attest thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/attest/thesaurus/synonyms
ChicagoSmart Define. 2015. "attest thesaurus" https://smartdefine.org/attest/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, attest thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/attest/thesaurus/synonyms>.
MLASmart Define. "attest thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/attest/thesaurus/synonyms>