at·​test | \ ə-ˈtest How to pronounce attest (audio) \
attested; attesting; attests

Definition of attest

transitive verb

1a : 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 The first use of the word "Internet" is attested in 1985.
3 : to be proof of : manifest Her record attests her integrity.
4 : to put on oath

intransitive verb

: to show, prove, or state that something is true or real usually used with toI can attest to the truth of his statement.attest to a belief

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Other Words from attest

attester \ ə-​ˈte-​stər How to pronounce attester (audio) \ noun

Choose the Right Synonym for attest

certify, attest, witness, vouch mean to testify to the truth or genuineness of something. certify usually applies to a written statement, especially one carrying a signature or seal. certified that the candidate had met all requirements attest applies to oral or written testimony usually from experts or witnesses. attested to the authenticity of the document witness applies to the subscribing of one's own name to a document as evidence of its genuineness. witnessed the signing of the will vouch applies to one who testifies as a competent authority or a reliable person. willing to vouch for her integrity

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 But growth means change, as any startup founder can attest. Dave Edwards, Quartz, "The decade that completely transformed venture capital," 7 Feb. 2020 Coyotes, foxes, and bobcats responding to predator calls usually approach within at least 200 yards and, as experienced callers will attest, often inside spitting distance. Ron Spomer, Outdoor Life, "How Cold Weather Can Kill Bullet Trajectory," 23 Dec. 2019 The Buckeyes, as their opponents would attest, are scary these days after becoming increasingly menacing in recent years. Rainer Sabin, Detroit Free Press, "How Ohio State became the 'Big One' of the Big Ten and lapped Michigan football," 6 Dec. 2019 The renovation of Denver International Airport is major, not only in terms of cost but also in impact, as anyone who has been through the airport in the past year can attest. The Denver Post, "Post Premium: Our best stories for the week of Nov. 11 – 17," 17 Nov. 2019 Cold feet are one of the biggest reasons some people miss out on some of the best outdoor fun, as anyone can attest who’s ever had the painful experience of thawing out their frozen extremities. The Editors, Field & Stream, "3 Things to Consider Before You Buy Insole Foot Warmers," 23 Oct. 2019 And as Jerry would attest, there were 25 veterinarians at USAMRIID whose job was to make sure that the animals are well taken care of. Catherine Zuckerman, National Geographic, "Meet the scientist who took on the first Ebola scare in the U.S.," 2 May 2019 The best seat in the house, as Somerset Maugham would attest, is in the Authors’ Lounge, tea in hand, while looking toward the Chao Phraya River. Erin Florio, Condé Nast Traveler, "What to Do in Bangkok: The Black Book," 27 Mar. 2018 And plenty of scrutiny, too, as Robinson and Bozeman would eagerly attest. Rainer Sabin,, "Do Alabama players invite more scrutiny from NFL evaluators?," 24 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'attest.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of attest

circa 1500, in the meaning defined at transitive sense 1a

History and Etymology for attest

Middle French attester, from Latin attestari, from ad- + testis witness — more at testament

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Time Traveler for attest

Time Traveler

The first known use of attest was circa 1500

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Statistics for attest

Last Updated

11 Feb 2020

Cite this Entry

“Attest.” Dictionary, Merriam-Webster, Accessed 17 Feb. 2020.

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More Definitions for attest


How to pronounce attest (audio)

English Language Learners Definition of attest

formal : to show, prove, or state that something is true or real


at·​test | \ ə-ˈtest How to pronounce attest (audio) \
attested; attesting

Kids Definition of attest

: to show or give proof of : say to be true I can attest to his innocence.


at·​test | \ ə-ˈtest How to pronounce attest (audio) \

Legal Definition of attest

transitive verb

: to bear witness to : affirm to be true or genuine specifically : to authenticate (as a will) by signing as a witness

intransitive verb

: to bear witness : testify often used with to

Other Words from attest

attestation \ ˌa-​ˌtes-​ˈtā-​shən How to pronounce attestation (audio) \ noun

History and Etymology for attest

Latin attestari, from ad to + testari to call to witness, from testis witness

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More from Merriam-Webster on attest

Thesaurus: All synonyms and antonyms for attest

Spanish Central: Translation of attest

Nglish: Translation of attest for Spanish Speakers

Britannica English: Translation of attest for Arabic Speakers

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