114 entries under substantiate topic. ×

3
agree(verb, support, accept, favor, establish)
3
assay(verb, check, show, determine, examine)
3
assert(verb, support, state, maintain, favor)
3
bless(verb, support, accept, favor, agree)
3
check out(verb, expression, support, back, idea)
3
claim(verb, support, state, maintain, favor)
3
contend(verb, support, state, maintain, favor)
3
experiment(verb, check, show, determine, examine)
3
explain(verb, support, confirm, prove)
3
give the go-ahead(verb, expression, idiom, support, back)
3
rubber-stamp(verb, support, state, back, approve)
3
test(verb, check, show, determine, examine)
2
advocate(verb, support, state, accept, maintain)
2
buy(verb, support, accept, favor, agree)
2
clear(verb, support, favor, sustain, confirm)
2
debunk(verb, support, show, back, display)
2
defend(verb, support, help, keep, maintain)
2
double-check(verb, support, check, back, confirm)
2
excuse(verb, support, favor, confirm, defend)
2
lap up(expression, support, accept, favor, agree)
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APASmart Define. (2015). validate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/validate/thesaurus/synonyms
ChicagoSmart Define. 2015. "validate thesaurus" https://smartdefine.org/validate/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, validate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/validate/thesaurus/synonyms>.
MLASmart Define. "validate thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/validate/thesaurus/synonyms>