10
document(verb, show, determine, confirm, explain)
10
uphold(verb, support, help, show, accept)
9
back(verb, support, help, show, accept)
9
justify(verb, support, show, determine, back)
9
notarize(verb, authorize, certify, legalize)
8
legalize(verb, support, favor, sustain, confirm)
8
license(verb, support, state, accept, favor)
8
permit(verb, support, accept, favor, agree)
8
show(verb, support, state, show, maintain)
7
accept(verb, support, favor, agree, establish)
7
empower(verb, support, accept, favor, agree)
7
legitimize(verb, support, favor, sustain, confirm)
7
make legal(verb, expression, endorse, prove, enact)
7
sign(verb, support, accept, favor, agree)
6
authorise(verb, legalize)
6
countersign(verb, approve, authorize, sanction, recommend)
6
declare(verb, state, show, determine, confirm)
6
formalise
6
formalize
5
back up(verb, expression, support, approve, sanction)
11 years ago|12k views|share |citing 
APASmart Define. (2015). validate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/validate/thesaurus/synonyms
ChicagoSmart Define. 2015. "validate thesaurus" https://smartdefine.org/validate/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, validate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/validate/thesaurus/synonyms>.
MLASmart Define. "validate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/validate/thesaurus/synonyms>