Synonyms|441Antonyms|81|Broader|10Narrower|1Related|338

75 entries under corroborate topic. ×

8
sustain(verb, support, show, determine, praise)
7
uphold(verb, support, show, determine, favor)
6
vouch(verb, support, state, back, sign)
5
back up(verb, expression, support, praise, favor)
5
countersign(verb, state, show, sign, approve)
5
vouch for(verb, expression, support, show, praise)
5
witness(verb, support, state, show, determine)
4
legalize(verb, endorse, prove, verify, substantiate)
4
resolve
3
bless(verb, support, praise, favor, back)
3
circumstantiate(verb, support, determine, back, sign)
3
give the go-ahead(expression, idiom, support, praise, favor)
3
make good(verb, expression, idiom, support, back)
3
sign(verb, support, back, approve, sanction)
2
check out(verb, expression, support, back, idea)
2
debunk(verb, support, show, back, sign)
2
explain(verb, support, show, determine, back)
2
give green light(expression, idiom, support, praise, favor)
2
give high sign(expression, idiom, support, back, sign)
2
give stamp of approval(expression, idiom, support, back, sign)
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APASmart Define. (2015). authenticate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms
ChicagoSmart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, authenticate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>.
MLASmart Define. "authenticate thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms>