128 entries under prove topic. ×

15
authenticate(verb, support, show, determine, praise)
15
sanction(noun, verb, law, support, accept)
15
sustain(verb, support, show, determine, favor)
14
establish(verb, support, state, show, accept)
11
vouch(verb, support, state, give, maintain)
10
announce(verb, state, show, maintain, agree)
10
acknowledge(verb, state, hold, accept, maintain)
9
assure(verb, support, maintain, secure, declare)
9
back(verb, support, hold, show, accept)
8
admit(verb, state, hold, accept, consider)
8
argue(verb, state, hold, charge, show)
8
bear out(verb, expression, phrasal verb, support, show)
8
uphold(verb, support, state, show, accept)
7
ensure(verb, support, maintain, secure, declare)
6
countersign(verb, state, show, sign, approve)
6
demonstrate(verb, state, show, maintain, determine)
6
show(verb, state, present, maintain, determine)
6
witness(verb, support, state, show, maintain)
5
bear witness(verb, expression, state, show, declare)
5
vouch for(verb, expression, phrasal verb, support, show)
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APASmart Define. (2015). affirm thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/affirm/thesaurus/synonyms
ChicagoSmart Define. 2015. "affirm thesaurus" https://smartdefine.org/affirm/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, affirm thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/affirm/thesaurus/synonyms>.
MLASmart Define. "affirm thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/affirm/thesaurus/synonyms>