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To establish the existence or truth of a particular fact through the use of competent evidence; to verify.

For example, an Eyewitness might be called by a party to a lawsuit to substantiate that party's testimony.


verb actualize, affirm, attest, bear out, bear witness, certify, circumstantiate, corroborate, demonstrate, embody, establish by proof, evidence, make good, materialize, objectify, prove, ratify, realize, reify, substantialize, support, uphold, verify, vindicate
Associated concepts: substantiate a claim, substantiate charges
See also: adduce, attest, bear, cite, confirm, corroborate, demonstrate, document, establish, maintain, probate, prove, quote, realize, seal, show, state, support, sustain, uphold, validate, verify, witness
References in periodicals archive ?
Royal Liverpool Philharmonic head of communications Jayne Garrity said today: "We were able to draw on our archive to substantiate our claim, thanks to the hard work over two years by a team of 30 volunteers and a professional archivist.
Testing will be carrier out at QinetiQ's test facility in Farnborough, England, where engineers will substantiate the predicted low-speed performance of the aircraft on takeoff and landing.
Summary: Algiers - Human Rights Watch has affirmed that it found no proof to substantiate the toll alleged by the polisario over the dismantling of the Gdim Izik camp.
As part of the Australian Consumer Law amendments to the Trade Practices Act (TPA) passed earlier in the year, the Australian Competition and Consumer Commission (ACCC) has been given the power to issue substantiation notices that require a corporation to deliver up information and/or documents that substantiate claims or representations that have been made about products or services within 21 days (or later if an extension can be negotiated).
AN anti-wind farm group was told yesterday it must substantiate future claims after the advertising watchdog upheld a series of complaints about a campaign leaflet.
Re-member the final step of an investigation is to substantiate or disprove the allegation generated by an event.
E there was a lively debate about the origin of sin, without mentioning "the fall"; the biblical interpreters at Qumran found in the description of Israel at Sinai an ideal community worthy of imitation; pesher exegesis applied biblical texts to postbiblical settings in order to substantiate a theological conviction pertaining to divine reward and punishment; and Psalm 91 was understood as an apotropaic song that possessed the power to safeguard the faithful from malevolent spirits.
She also says that documents substantiate that the CIA knew the pseudonym and location of the famously malignant Holocaust manager Adolph Eichmann as early as 1958, but did not provide the information to Israel, which had been seeking him since shortly after the war.
It warned him he has 14 days to substantiate his claims and co-operate with the enquiry or his case will be passed on to the FA and he will be charged with bringing the game into disrepute.
To substantiate this claim, she then states, "nearly one-quarter of 625 primate species are in peril.
This column is for inquiries submitted to DAV members and other interested persons attempting to locate persons to substantiate a claim for service-connected injuries.
Since those rules are elective and the taxpayer avoids having to substantiate actual expenses, Continental must take the bad with the good--the permitted deduction does not necessarily represent the actual expense.