Definition of substantiate in English:

substantiate

verb

[with object]
  • Provide evidence to support or prove the truth of.

    ‘they had found nothing to substantiate the allegations’
    • ‘Hence, our results provide data substantiating the earlier proposition that protein binding and protein folding have similar underlying principles.’
    • ‘Parents were outraged after social services investigators found no evidence to substantiate the claims.’
    • ‘These decisions are based on gathering evidence and substantiating facts.’
    • ‘Subsequently, the police declared that there was no evidence to substantiate the allegations.’
    • ‘Following the pattern of the previous section, evidence will be provided substantiating the veracity of the themes of the argument.’
    • ‘What's missing is concrete evidence that substantiates the claim and excludes other influences.’
    • ‘No evidence substantiating this claim has been made public, however, and the CIA itself has refused any comment on the operation.’
    • ‘But he did not bother to substantiate his argument by providing any figures.’
    • ‘However, when some educators, among them representatives of regional accrediting bodies, began to ask for evidence of this assertion, few institutions could provide substantiating documentation.’
    • ‘They have failed to produce evidence to substantiate the reason for refusal of the application.’
    • ‘Journalists try to substantiate allegations with other evidence, but this isn't always possible.’
    • ‘Scientific tests at the American trials found no evidence to substantiate claims of improved performance.’
    • ‘The Chicago Tribune reports that a grand jury has been convened, but no evidence substantiating the government's position has been released.’
    • ‘However no evidence has been found to substantiate allegations that animals have been mistreated.’
    • ‘The strategy is about substantiating the case and providing a framework to guide development in ways which maximise the potential.’
    • ‘But the bureau said the motives could either not be ascertained or substantiated by evidence.’
    • ‘Yet the IGIS inquiry has provided no evidence to substantiate this conclusion.’
    • ‘In themselves they don't really mean a lot unless they can be substantiated by some scientific evidence.’
    • ‘I therefore ask you to challenge the spokesman, on my behalf, to produce evidence to substantiate his claims or withdraw them.’
    • ‘There is evidence in abundance which substantiates my claim.’
    prove, give proof of, show to be true, give substance to, support, uphold, back up, bear out, justify, vindicate, validate, corroborate, verify, authenticate, confirm, endorse, give credence to, lend weight to, establish, demonstrate
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Origin

Mid 17th century: from medieval Latin substantiat- ‘given substance’, from the verb substantiare.

Pronunciation

substantiate

/səbˈstanʃɪeɪt/