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Substantiate has 63 synonyms. The top synonyms for substantiate are warrant, verify, validate, uphold, undergird, try out, try it on, transmigrate and 55 more. Another word for substantiate is warrant. Browse the full list below.
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| Random | DefinitionA common synonym for substantiate is warrant. Other synonyms include verify, validate, uphold, undergird.
Substantiate has 63 synonyms listed on Thesaurasize.
(v): to verify something by supplying evidence; to corroborate or authenticate; to give material form or substance to something; to embody
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