83 entries under establish topic. ×

38
confirm(verb, support, state, show, accept)
27
validate(verb, support, state, show, accept)
25
affirm(verb, support, state, show, accept)
24
verify(verb, support, state, check, show)
20
endorse(verb, support, state, make, accept)
20
assure(verb, support, state, maintain, secure)
19
warrant(verb, support, state, make, show)
18
license(noun, verb, support, state, make)
18
ratify(verb, support, state, show, accept)
17
demonstrate(verb, state, check, show, maintain)
17
sanction(verb, support, state, make, meet)
15
support(verb, show, accept, release, maintain)
14
authorize(verb, support, state, make, meet)
11
back(verb, support, show, accept, maintain)
10
accredit(verb, support, state, control, make)
8
permit(verb, support, make, meet, accept)
8
uphold(verb, support, show, accept, maintain)
7
ascertain(verb, state, show, determine)
7
insure(verb, support, maintain, secure)
7
sign(noun, verb, support, accept, favor)
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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>