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

150 entries under confirm topic. ×

1
hold up(verb, expression, phrasal verb, prove)
1
inquire(verb, check, examine, try)
1
investigate(verb, check, examine, try)
1
look into(verb, expression, check, examine, try)
1
make a trial run(expression, idiom, check, examine, try)
1
make allowances(verb, expression, support, favor, sustain)
1
make sure(verb, expression, support, back, sign)
1
match up(verb, expression, check, examine, try)
1
palliate(verb, support, favor, defend)
1
pan out(verb, expression, show, determine)
1
pardon(verb, support, favor, sustain)
1
predicate(verb, support, maintain, determine, back)
1
profess(verb, support, maintain, back, declare)
1
prove out(verb, expression, check, examine, try)
1
put forth(verb, expression, support, maintain, back)
1
put to the test(expression, idiom, check, examine, try)
1
question(verb, check, examine, try)
1
quiz(verb, check, examine, try)
1
rebut(verb, support, favor, sustain)
1
run idea by someone(expression, idiom, check, examine, try)
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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>