attested; attesting; attests
1
a
: to affirm to be true or genuine
specifically
: to authenticate by signing as a witness
b
: to authenticate officially
2
: to establish or verify the usage of
a word that was first attested in the 18th century
3
: to be proof of : manifest
Her record attests her integrity.
4
: to put on oath
: to show, prove, or state that something is true or real
—usually used with to
I can attest to the truth of his statement.
attest to a belief
Examples of attest in a Sentence
I can attest that what he has said is true.
The certificate attests the authenticity of the painting.
Recent Examples on the Web
Junior catcher Alexis Turley can attest that Ciesielski, who plays all over the field, is living up to that ideal.
—
Michael Osipoff, Chicago Tribune, 3 Apr. 2026
Within 120 days, California's Department of General Services and Department of Technology will submit recommendations for new AI‑related vendor certifications which would allow firms to attest to responsible AI governance and public‑safety protections.
—Reuters, USA Today, 1 Apr. 2026
The association of punch with an Indian origin is attested to in English as early as the 17th century.
—Encyclopedia Britannica, 31 Mar. 2026
In the weeks that followed, a detailed account of a different captive’s story was read every Shabbat, attesting to a lingering collective grief.
—Eyal Press, New Yorker, 30 Mar. 2026
See All Example Sentences for attest
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Michael Osipoff, Chicago Tribune, 3 Apr. 2026
Within 120 days, California's Department of General Services and Department of Technology will submit recommendations for new AI‑related vendor certifications which would allow firms to attest to responsible AI governance and public‑safety protections.
—Reuters, USA Today, 1 Apr. 2026
The association of punch with an Indian origin is attested to in English as early as the 17th century.
—Encyclopedia Britannica, 31 Mar. 2026
In the weeks that followed, a detailed account of a different captive’s story was read every Shabbat, attesting to a lingering collective grief.
—Eyal Press, New Yorker, 30 Mar. 2026
See All Example Sentences for attest
Cite this Entry
“Attest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/attest. Accessed 5 Apr. 2026.
Copy CitationKids Definition
attest
verb
at·test
ə-ˈtest 
1
: to affirm to be true
2
: to be proof of
the result attests the truth of that statement
Legal Definition
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