Substantiate - definition of substantiate by The Free Dictionary 1 to establish by proof or competent evidence: to substantiate a charge 2 to give substantial existence to 3 to affirm as having substance; strengthen: to substantiate a friendship sub•stan`ti•a′tion, n sub•stan′ti•a`tor, n
substantiate - Wiktionary, the free dictionary substantiate (third-person singular simple present substantiates, present participle substantiating, simple past and past participle substantiated) ( transitive ) To verify something by supplying evidence ; to authenticate or corroborate
substantiate - WordReference. com Dictionary of English to establish by proof or competent evidence: to substantiate a charge to give substantial existence to: to substantiate an idea through action to affirm as having substance; give body to; strengthen: to substantiate a friendship