Synonyms|673Antonyms|118|Broader|13Narrower|17Related|401

160 entries under prove topic. ×

2
bear witness(verb, expression, show, confirm)
2
betoken(verb, state, show, appear)
2
complete(verb, express, idea, realize)
2
connote(verb, show, demonstrate, evince)
2
contend(verb, support, maintain, favor, back)
2
debunk(verb, support, back, sign, idea)
2
double-check(verb, support, back, confirm, explain)
2
give high sign(expression, idiom, support, back, sign)
2
indicate(verb, state, show, confirm)
2
legalize(verb, support, favor, sustain, confirm)
2
legitimize(verb, support, favor, sustain, confirm)
2
make legal(verb, expression, endorse, verify)
2
okay(verb, support, maintain, back, declare)
2
personize(character, realize, appear, manifest)
2
reify(verb, express, idea, realize)
2
rubber-stamp(verb, support, maintain, back, declare)
2
second(verb, hold, help, maintain, establish)
2
try on(verb, expression, phrasal verb, check, examine)
2
underpin(verb, support, back, sign, explain)
1
John Hancock(expression, endorse, verify, corroborate)
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ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>