2
accord(verb, support, release, pass, favor)
2
adjure(verb, show, confirm, prove, appear)
2
advocate(verb, support, state, accept, maintain)
2
announce(verb, state, show, maintain, agree)
2
answer for(verb, expression, support, maintain, secure)
2
approbate(verb, support, accept, favor, agree)
2
argue(verb, state, show, maintain, declare)
2
assert under oath(expression, idiom, support, guarantee)
2
be big(verb, support, make, release, pass)
2
be game for(verb, support, release, pass, favor)
2
betoken(verb, state, declare, sign, confirm)
2
book
2
brook(verb, support, release, pass, favor)
2
buy(support, accept, favor, agree, establish)
2
certified
2
check out(verb, expression, support, meet, pass)
2
cinch(verb, state, maintain, secure, establish)
2
circumstantiate(prove, verify, substantiate, validate, corroborate)
2
classify
2
concede(allow, permit, authorize)
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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>