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

173 entries under support topic. ×

1
brace(verb, increase, establish, extend)
1
brief(verb, favor, sustain, confirm)
1
build up(verb, expression, increase, establish)
1
buy(verb, back, sign, prove)
1
condone(verb, favor, sustain, confirm)
1
cop a plea(verb, expression, idiom, favor)
1
cosign(verb, maintain, back, declare)
1
countenance(verb, hold, help, favor)
1
crawl(verb, favor, sustain, confirm)
1
do justice to(verb, expression, idiom, maintain)
1
empower(verb, increase, establish, extend)
1
enhance(verb, increase, establish, extend)
1
enlarge(verb, increase, establish, extend)
1
exculpate(verb, maintain, defend, explain)
1
exonerate(maintain, defend, explain, justify)
1
extend(verb, increase, establish, restore)
1
fix(verb, show, determine, base)
1
give an affidavit(verb, expression, idiom, maintain)
1
give assurance(verb, expression, maintain, back)
1
give green light(expression, idiom, back, sign)
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ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>