130 entries under substantiate topic. ×

4
legitimize(verb, support, favor, defend, endorse)
3
experiment(verb, check, show, determine, examine)
3
give the go-ahead(verb, expression, idiom, support, praise)
3
stand up for(verb, expression, idiom, support, maintain)
3
underpin(verb, prove, verify, validate)
2
absolve(verb, support, favor, sustain, defend)
2
advocate(verb, support, state, help, accept)
2
assay(verb, check, show, determine, examine)
2
answer for(verb, expression, support, maintain, secure)
2
buy(verb, support, accept, favor, agree)
2
champion(verb, support, help, accept, maintain)
2
clear(verb, support, end, fix, complete)
2
condone(verb, support, help, accept, pass)
2
contend(verb, support, state, maintain, favor)
2
debunk(verb, check, show, express, display)
2
examine(verb, check, show, determine, correct)
2
exculpate(verb, support, favor, defend, explain)
2
favor(verb, support, help, accept, keep)
2
give the nod(verb, expression, idiom, support, help)
2
help(verb, support, accept, keep, maintain)
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APASmart Define. (2015). confirm thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/confirm/thesaurus/synonyms
ChicagoSmart Define. 2015. "confirm thesaurus" https://smartdefine.org/confirm/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, confirm thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/confirm/thesaurus/synonyms>.
MLASmart Define. "confirm thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/confirm/thesaurus/synonyms>