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

77 entries under support topic. ×

9
justify(verb, show, determine, back)
9
sanction(verb, state, favor, back)
8
accredit(verb, state, praise, favor)
8
sustain(verb, show, determine, praise)
7
uphold(verb, show, determine, favor)
6
vouch(verb, state, back, sign)
5
back up(verb, expression, praise, favor)
5
guarantee(verb, state, praise, settle)
5
testify(verb, state, show, determine)
5
vouch for(verb, expression, show, praise)
5
witness(verb, state, show, determine)
4
underwrite(verb, praise, favor, back)
3
bless(verb, praise, favor, back)
3
circumstantiate(verb, determine, back, sign)
3
give the go-ahead(expression, idiom, praise, favor)
3
make good(verb, expression, idiom, back)
3
sign(verb, back, approve, sanction)
2
check out(verb, expression, back, idea)
2
debunk(verb, show, back, sign)
2
evidence(verb, show, establish, true)
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APASmart Define. (2015). authenticate thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms
ChicagoSmart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, authenticate thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>.
MLASmart Define. "authenticate thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms>