Synonyms|673Antonyms|118|Broader|13Narrower|17Related|401

150 entries under confirm topic. ×

1
bear testimony(verb, expression, support, maintain, back)
1
brief(verb, support, favor, sustain)
1
check on(verb, expression, story, verify)
1
check up(verb, expression, phrasal verb, idea)
1
check up on(verb, expression, idiom, check)
1
condone(verb, support, favor, sustain)
1
cop a plea(verb, expression, idiom, support, favor)
1
cosign(verb, support, maintain, back, declare)
1
countersign(show, prove, appear, swear)
1
crawl(verb, support, favor, sustain)
1
declare true(verb, expression, story, verify)
1
display(verb, state, show, establish, reveal)
1
do justice to(verb, expression, idiom, support, maintain)
1
double check(verb, expression, story, verify)
1
examine(verb, check, show, determine, try)
1
experimentalize(verb, check, examine, try)
1
fix(verb, support, show, determine, base)
1
give an affidavit(verb, expression, idiom, support, maintain)
1
give assurance(verb, expression, support, maintain, back)
1
give nod(verb, expression, story, verify)
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/substantiate/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>