attest

1
as in to certify
to declare (something) to be true or genuine the appraiser attests that the lamp is indeed an original Tiffany

Synonyms & Similar Words

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2
as in to testify
to make a solemn declaration under oath for the purpose of establishing a fact an eyewitness who will attest to my innocence

Synonyms & Similar Words

3

Synonym Chooser

How does the verb attest contrast with its synonyms?

Some common synonyms of attest are certify, vouch, and witness. While all these words mean "to testify to the truth or genuineness of something," attest applies to oral or written testimony usually from experts or witnesses.

attested to the authenticity of the document

When would certify be a good substitute for attest?

The words certify and attest can be used in similar contexts, but certify usually applies to a written statement, especially one carrying a signature or seal.

certified that the candidate had met all requirements

When could vouch be used to replace attest?

The meanings of vouch and attest largely overlap; however, vouch applies to one who testifies as a competent authority or a reliable person.

willing to vouch for her integrity

When is witness a more appropriate choice than attest?

Although the words witness and attest have much in common, witness applies to the subscribing of one's own name to a document as evidence of its genuineness.

witnessed the signing of the will

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 attest PCMag cannot attest to the success rate of people who complete a Nanodegree and subsequently receive a job offer or promotion. PC Magazine, 13 Oct. 2025 Her repetitions and stammerings and strange inflections were very much her own, as a perusal of her interviews will attest. Matt Zoller Seitz, Vulture, 12 Oct. 2025 As anyone most people can probably attest, practicing movement throughout the day has other benefits as well—and downward dog is no different. Ana Morales, Vogue, 11 Oct. 2025 As Tuchel attested, England’s inclination to regain possession was as impressive as their work on the ball. Mark Carey, New York Times, 10 Oct. 2025 See All Example Sentences for attest
Recent Examples of Synonyms for attest
Verb
  • Weeks before his retirement, the Indiana Supreme Court certified Stoner to continue hearing cases on a part-time basis in Marion County through 2025.
    Ryan Murphy, IndyStar, 21 Oct. 2025
  • The fabric is also made wrinkle and fade resistant as well as hypoallergenic and Oeko-Tex certified.
    Mariana Best, Better Homes & Gardens, 19 Oct. 2025
Verb
  • During a four-day trial in Los Angeles, Dunbar testified about his belief that the COVID vaccine is harmful and against God’s teachings.
    Gene Maddaus, Variety, 18 Oct. 2025
  • Also at the hearing, Los Angeles Police Department (LAPD) forensic analysts and detectives testified that Mooney's body was found in a refrigerator.
    Charlotte Phillipp, PEOPLE, 18 Oct. 2025
Verb
  • Handshakes are a first step, but only a new agreement can verify compliance and reestablish the regular channels of communications that are critical to prevent a civilization-ending miscalculation.
    Ernest J. Moniz, Variety, 23 Oct. 2025
  • And with a few canny pointers on how LLMs work and how to effectively structure prompts, AI can actually aid us in verifying posts on social media and offer missing context.
    Nadav Ziv, Time, 23 Oct. 2025
Verb
  • Barcelona striker turned La Liga pundit Gary Lineker reckons that one thing is guaranteed when his former club visit Real Madrid in Sunday’s Clasico at the Bernabeu.
    Dermot Corrigan, New York Times, 23 Oct. 2025
  • New Jerseyans’ electricity rates rose roughly 20% at the start of June as a result of price-setting capacity auctions—the market where power producers are paid to guarantee future supply.
    Sharon Goldman, Fortune, 22 Oct. 2025
Verb
  • But local journalists confirmed the video was of agents detaining a protester.
    Ben Smith, semafor.com, 20 Oct. 2025
  • United later confirmed the pilot sustained only minor injuries.
    Kaif Shaikh, Interesting Engineering, 20 Oct. 2025
Verb
  • Morgan Stanley affirms underweight rating, cuts price objective to $175 from $192 Morgan Stanley price target is 3% below Tuesday's close.
    Itzel Franco, CNBC, 22 Oct. 2025
  • Earlier in October, a Macomb County Circuit Court judge affirmed a lower court's dismissal in the fifth case.
    Christina Hall, Freep.com, 22 Oct. 2025
Verb
  • In fact, little of that story line, Androsoff argues, is backed up by historical evidence.
    JSTOR Daily, JSTOR Daily, 20 Oct. 2025
  • At the time, Cortese argued the tax was needed to address significant and growing budget challenges.
    Mercury News Editorial, Mercury News, 19 Oct. 2025
Verb
  • Yet the nation is now witnessing an unprecedented attack on the First Amendment.
    The Editorial Board, Oc Register, 19 Oct. 2025
  • Not only was Israel next to his mother as she was shot, but Isaac also witnessed the shooting.
    Lynsey Eidell, PEOPLE, 19 Oct. 2025

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Cite this Entry

“Attest.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/attest. Accessed 25 Oct. 2025.

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