72 entries under back topic. ×

8
accredit(verb, support, state, praise, favor)
8
sustain(verb, support, show, determine, praise)
7
uphold(verb, support, show, determine, favor)
6
vouch(verb, support, state, sign)
5
back up(verb, expression, support, praise, favor)
5
guarantee(verb, support, state, praise, settle)
5
vouch for(verb, expression, support, show, praise)
5
witness(verb, support, state, show, determine)
4
underwrite(verb, support, praise, favor)
3
bless(verb, support, praise, favor)
3
circumstantiate(verb, support, determine, sign)
3
give the go-ahead(expression, idiom, support, praise, favor)
3
make good(verb, expression, idiom, support)
3
sign(verb, support, approve, sanction)
2
check out(verb, expression, support, idea)
2
debunk(verb, support, show, sign)
2
explain(verb, support, show, determine)
2
give green light(expression, idiom, support, praise, favor)
2
give high sign(expression, idiom, support, sign)
2
give stamp of approval(expression, idiom, support, sign)
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APASmart Define. (2015). authenticate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms
ChicagoSmart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, authenticate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>.
MLASmart Define. "authenticate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms>