1
bless(verb, support, back, sign, approve)
1
brace(verb, support, increase, establish, extend)
1
build up(verb, expression, support, increase, establish)
1
buy(verb, support, back, sign, uphold)
1
cement
1
certified
1
check on(verb, expression, story, demonstrate, verify)
1
check up(verb, expression, phrasal verb, idea, confirm)
1
check up on(verb, expression, idiom, check, confirm)
1
confirming
1
confute(maintain, defend, uphold, prove, refute)
1
console
1
consolidate
1
constitute(endorse, prove, verify, substantiate)
1
corroborated
1
corroborates
1
corroborating
1
cosign(verb, support, maintain, back, declare)
1
declare true(verb, expression, story, verify, substantiate)
1
demonstrated
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APASmart Define. (2015). corroborate thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/corroborate/thesaurus/synonyms
ChicagoSmart Define. 2015. "corroborate thesaurus" https://smartdefine.org/corroborate/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, corroborate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/corroborate/thesaurus/synonyms>.
MLASmart Define. "corroborate thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/corroborate/thesaurus/synonyms>