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

75 entries under corroborate topic. ×

2
legalize(verb, support, favor, sustain, confirm)
2
legitimize(verb, support, favor, sustain, confirm)
2
make legal(verb, expression, endorse, prove, verify)
2
okay(verb, support, maintain, back, declare)
2
rubber-stamp(verb, support, maintain, back, declare)
2
second(verb, hold, help, maintain, establish)
2
underpin(verb, support, back, sign, explain)
1
John Hancock(expression, endorse, prove, verify)
1
advance(verb, hold, help, establish, back)
1
bless(verb, support, back, sign, approve)
1
buy(verb, support, back, sign, prove)
1
champion(verb, hold, help, establish, back)
1
constitute(endorse, prove, verify)
1
display(verb, state, show, establish, reveal)
1
give green light(expression, idiom, support, back, sign)
1
give stamp of approval(expression, idiom, support, back, sign)
1
give the go-ahead(expression, idiom, support, back, sign)
1
give the green light(expression, idiom, endorse, prove, verify)
1
give the nod(expression, idiom, support, back, sign)
1
help(verb, hold, maintain, establish, back)
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/substantiate/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>