27 entries under prove topic. ×

15
legalize(verb, law, support, favor, sustain)
10
sanction(verb, allow, authorize, endorse, regulate)
9
authorize(verb, allow, sanction, endorse, regulate)
9
validate(verb, support, favor, sustain, confirm)
6
justify(verb, defend, explain, endorse)
6
ratify(verb, endorse, substantiate)
5
make legal(verb, expression, idiom, endorse)
4
certify(verb, endorse, substantiate)
4
constitute(verb, endorse, regulate, verify)
3
support(verb, defend, explain, endorse)
2
substantiate(verb, support, favor, sustain, confirm)
1
John Hancock(expression, endorse, verify, substantiate)
1
authenticate(endorse, verify, substantiate, corroborate)
1
bear out(verb, expression, support, favor, sustain)
1
corroborate(endorse, verify, substantiate)
1
give stamp of approval(expression, idiom, endorse, substantiate)
1
give the go-ahead(expression, idiom, endorse, substantiate)
1
give the green light(expression, idiom, endorse, verify)
1
give the nod(expression, idiom, endorse, substantiate)
1
make binding(expression, endorse, verify, substantiate)
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APASmart Define. (2015). legitimize thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/legitimize/thesaurus/synonyms
ChicagoSmart Define. 2015. "legitimize thesaurus" https://smartdefine.org/legitimize/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, legitimize thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/legitimize/thesaurus/synonyms>.
MLASmart Define. "legitimize thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/legitimize/thesaurus/synonyms>