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
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of substantiation
The smear sites have alleged, without substantiation, that targets engaged in — among other activities — extortion, embezzlement, prostitution, drug dealing and human trafficking.
—
Gary Baum, HollywoodReporter, 11 Feb. 2026
Some companies may have responded to an initial notice without all of the substantiation required.
—Guinevere Moore, Forbes.com, 26 Jan. 2026
As with the seven other cases, the claim to have brought peace in Gaza lacks substantiation.
—Timothy Joseph, The Conversation, 21 Jan. 2026
Consequently, all three adverts were upheld as breaches of the CAP Code—more specifically, edition 12 of the primary framework for the rulings—and slapped with misleading advertising and lack of substantiation.
—Alexandra Harrell, Sourcing Journal, 3 Dec. 2025
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Gary Baum, HollywoodReporter, 11 Feb. 2026
Some companies may have responded to an initial notice without all of the substantiation required.
—Guinevere Moore, Forbes.com, 26 Jan. 2026
As with the seven other cases, the claim to have brought peace in Gaza lacks substantiation.
—Timothy Joseph, The Conversation, 21 Jan. 2026
Consequently, all three adverts were upheld as breaches of the CAP Code—more specifically, edition 12 of the primary framework for the rulings—and slapped with misleading advertising and lack of substantiation.
—Alexandra Harrell, Sourcing Journal, 3 Dec. 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
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The phone, believed to hold possible evidence against her, was later recovered in the sea.—
JULIA FRANKEL THE ASSOCIATED PRESS,
Arkansas Online,
13 Mar. 2026
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However, a study published today in the journal Science provides evidence that ravens may be remembering hunting hotspots and scavenging for food, rather than chasing wolves.—
Nidhi Sharma,
Popular Science,
12 Mar. 2026
Noun
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Fuentes has offered Fishback’s more positive poll results as proof of the strength of his own following, the Groypers, while declining to endorse him in an effort to stanch the candidate’s toxicity.—
Dan Adler,
Vanity Fair,
11 Mar. 2026
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Edebiri plays Catherine, a brilliant but restless daughter of renowned mathematics professor Robert (Cheadle) who is thrust into turmoil when a notebook containing a revelatory proof is discovered after his death.—
Greg Evans,
Deadline,
11 Mar. 2026
Noun
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Offering running commentary on depositions outside of the courtroom risks compromising witness testimony, affecting the integrity of evidence review, and impacting ongoing judicial proceedings.—
Alene Tchekmedyian,
Los Angeles Times,
11 Mar. 2026
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At the request of any of those committees, the authority’s executive director and chairperson would be required to provide in-person testimony about the acquisition, constructions and development of sports facilities and surrounding infrastructure.—
Matthew Kelly,
Kansas City Star,
10 Mar. 2026
Noun
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Meanwhile, Oyer is seeking documentation surrounding her firing in a Freedom of Information Act suit.—
Nick Penzenstadler,
USA Today,
10 Mar. 2026
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Oakwood's resolution also requests documentation from DHS and the United States Immigration and Customs Enforcement, as well as urging Hall County officials and those of nearby cities to adopt similar resolutions.—
Dan Raby,
CBS News,
10 Mar. 2026
Cite this Entry
“Substantiation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiation. Accessed 14 Mar. 2026.
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