15
establish(verb, support, state, check, show)
15
support(verb, show, accept, release, maintain)
15
vouch(verb, support, state, give, maintain)
14
authorize(verb, support, state, make, meet)
14
show(verb, state, maintain, determine, declare)
13
declare(verb, support, state, show, maintain)
13
ensure(verb, support, maintain, secure, approve)
13
vouch for(verb, expression, phrasal verb, support, show)
12
aver(verb, support, state, show, maintain)
12
profess(verb, support, state, maintain, agree)
12
swear(verb, support, state, show, maintain)
11
avouch(verb, state, maintain, agree, allow)
11
back(verb, support, show, accept, maintain)
11
commission(verb, support, state, make, meet)
10
accredit(verb, support, state, control, make)
10
document(verb, show, determine, confirm, explain)
10
manifest(verb, state, show, maintain, determine)
10
state(verb, maintain, agree, allow, declare)
9
assert(verb, support, state, show, maintain)
8
acknowledge(verb, support, state, maintain, agree)
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APASmart Define. (2016). certify thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/certify/thesaurus/synonyms
ChicagoSmart Define. 2016. "certify thesaurus" https://smartdefine.org/certify/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, certify thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/certify/thesaurus/synonyms>.
MLASmart Define. "certify thesaurus" 11 January 2016. Web. 20 September 2026. <https://smartdefine.org/certify/thesaurus/synonyms>