as in evidence
something presented in support of the truth or accuracy of a claim
the signature of a witness provides substantiation that a person's will is genuine
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Recent Examples of substantiation
Courts have consistently ruled that failure to comply with substantiation rules leads to disallowance, no matter how genuine the donation.
—
Matthew F. Erskine, Forbes.com, 9 Sep. 2025
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Matthew F. Erskine, Forbes.com, 9 Sep. 2025
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Recent Examples of Synonyms for substantiation
Noun
-
According to the 17th Judicial District Attorney’s Office, the evidence didn't point to Kristil's alleged stalker, but her own husband.—
Emily Blackwood,
PEOPLE,
27 Sep. 2025
-
Although the incidents were, on paper, entirely separate, Skeet and his allies believed they were linked and evidence of a conspiracy, orchestrated by Brandon and his allies, to remove them from power in the county.—
Mitch Moxley,
Rolling Stone,
27 Sep. 2025
Noun
-
Cycling the heat on and off allows the robots to adjust speed and even change direction — proof that controlled, repeatable motion is possible at this tiny scale.—
Neetika Walter,
Interesting Engineering,
26 Sep. 2025
-
The proof is inked on his right arm.—
Jessica Guynn,
USA Today,
26 Sep. 2025
Noun
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Johnson ruled that Gaines and the other athletes’ lawsuit may now advance to limited initial discovery, in which both parties will have 90 days to share relevant documents and give testimony.—
Abby Monteil,
Them.,
26 Sep. 2025
-
The case will advance to limited initial discovery, meaning the parties need to provide testimony and share relevant emails and other documents.—
Michael McCann,
Sportico.com,
26 Sep. 2025
Noun
-
On the sidelines, a pop-up program will feature workshops ranging from Emirati comics to a photography and documentation tour, while panels and keynote sessions will delve into the role of cinema in shaping youth culture.—
Essie Assibu,
Variety,
30 Sep. 2025
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The lack of proper documentation in that youth’s case led the office to conduct a statewide review, which showed similar problems.—
Shelly Bradbury,
Denver Post,
30 Sep. 2025
Cite this Entry
“Substantiation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiation. Accessed 2 Oct. 2025.
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