77 entries under expression topic. ×

12
bear out(verb, phrasal verb, support, show)
5
back up(verb, support, praise, favor)
5
vouch for(verb, support, show, praise)
3
give the go-ahead(idiom, support, praise, favor)
3
make good(verb, idiom, support, back)
2
check out(verb, support, back, idea)
2
give green light(idiom, support, praise, favor)
2
give high sign(idiom, support, back, sign)
2
give stamp of approval(idiom, support, back, sign)
2
give the nod(idiom, support, praise, favor)
2
make legal(noun, endorse, prove, verify)
2
rubber stamp(approve, sanction, endorse, validate)
2
say amen to(verb, idiom, sign)
2
sign off on(idiom, support, back, sign)
2
subscribe to(verb, support, praise, favor)
1
John Hancock(endorse, prove, verify, substantiate)
1
add up(verb, show, determine, confirm)
1
attest to(verify, validate)
1
bear witness(verb, state, show, sign)
1
bear witness to(verb, phrasal verb)
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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>