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
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
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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Wall Street wants to see evidence that these enormous expenditures will result in actual profits.—
John Towfighi,
CNN Money,
6 Feb. 2026
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Cayenne Initial evidence suggests that combining turmeric with cayenne pepper may yield even stronger anti-inflammatory benefits.—
Cristina Mutchler,
Verywell Health,
5 Feb. 2026
Noun
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Whether Silicon Valley’s early embrace becomes an asset or a liability may depend on how voters interpret the flood of tech money — as proof of confidence in a pragmatic mayor or as a sign that the industry is trying to shape the state’s political future.—
Grace Hase,
Mercury News,
12 Feb. 2026
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Sources told The Times that authorities have no proof the person who authored the ransom notes has Guthrie.—
Hannah Fry,
Los Angeles Times,
11 Feb. 2026
Noun
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Maxwell could also hope to use her potential testimony before Congress as leverage going forward.—
Bart Jansen,
USA Today,
10 Feb. 2026
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In some of the depositions, State Farm attorneys attempted to discredit their testimony.—
J.C. Hallman,
Oklahoman,
10 Feb. 2026
Noun
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In addition, Maison Margiela plans to share all its folders related to the events via Dropbox, letting anyone in the world sift through detailed digital files, from the call-time for models at the Shanghai fashion show to the documentation about what’s being shipped to China for the various events.—
Miles Socha,
Footwear News,
10 Feb. 2026
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Zaafran declined to comment on Cox’s case specifically but said that his understanding was there was not enough documentation.—
Cassandra Jaramillo,
CNN Money,
9 Feb. 2026
Cite this Entry
“Substantiation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiation. Accessed 15 Feb. 2026.
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