103 entries under expression topic. ×

15
bear out(verb, phrasal verb, support, show)
7
back up(verb, phrasal verb, support, verify)
3
bear witness(verb, state, show, declare)
3
check out(verb, phrasal verb, support, back)
3
vouch for(verb, state, show, sign)
2
attest to(verb, phrasal verb, support, maintain)
2
give evidence(verb, idiom, state, show)
2
give high sign(idiom, support, back, sign)
2
give stamp of approval(idiom, support, back, sign)
2
give the nod(idiom, support, back, sign)
2
make good(verb, idiom, support, back)
2
make legal(verb, endorse, prove, verify)
1
John Hancock(endorse, prove, verify, substantiate)
1
act as a witness(verb, idiom, support, maintain)
1
add fuel to fire(verb, idiom, support, increase)
1
add up(verb, show, determine, confirm)
1
be behind(verb, phrasal verb, approve, sanction)
1
bear testimony(verb, idiom, support, maintain)
1
build up(verb, support, increase, establish)
1
check on(verb, story, demonstrate, verify)
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APASmart Define. (2015). corroborate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/corroborate/thesaurus/synonyms
ChicagoSmart Define. 2015. "corroborate thesaurus" https://smartdefine.org/corroborate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, corroborate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/corroborate/thesaurus/synonyms>.
MLASmart Define. "corroborate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/corroborate/thesaurus/synonyms>