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
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of substantiation
Companies that lack a clear understanding of the FTC’s strict substantiation requirements may adopt such claims prematurely, increasing their exposure to enforcement.
—
Alexandra Harrell, Sourcing Journal, 17 Mar. 2026
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
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Alexandra Harrell, Sourcing Journal, 17 Mar. 2026
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
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
-
In recent days, another leak—of a call between Orbán and Vladimir Putin—has been held up as evidence of the former’s subservience.—
Kapil Komireddi,
New Yorker,
10 Apr. 2026
-
At the time, investigators collected DNA evidence in both cases, but no match was identified.—
Angelique Brenes,
PEOPLE,
10 Apr. 2026
Noun
-
Customers agree that the curved brush lengthens and volumizes their lashes, while the formula is smudge-, flake-, clump-, and sweat-proof.—
Izzy Baskette,
PEOPLE,
16 Apr. 2026
-
Two federal lawsuits have been filed in Florida challenging the requirement, arguing that requiring documentary proof of citizenship and marking that status on identification violates constitutional protections under the First and Fourteenth Amendments.—
Ivan Taylor,
CBS News,
15 Apr. 2026
Noun
-
The central bank chief said the subpoenas threatened a criminal indictment related to his testimony before the Senate Banking Committee in June 2025.—
Sarah N. Lynch,
CBS News,
15 Apr. 2026
-
Within 10 seconds, the young father was shot five times, including once in the head, just above his ear, court testimony revealed.—
Shelly Bradbury,
Denver Post,
14 Apr. 2026
Noun
-
Throughout the day, people can’t seem to stop reaching for means of documentation — their camcorder, digicam, phone, at one point even a palm-size notebook where a young artist from the neighborhood was sketching one of the sphinxes.—
Julissa James,
Los Angeles Times,
14 Apr. 2026
-
This is documentation as honoring.—
Scott Hocker,
TheWeek,
14 Apr. 2026
Cite this Entry
“Substantiation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiation. Accessed 17 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
