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as in to guarantee
to declare (something) to be true or genuine experts certified the letter as indeed having been written by Abraham Lincoln

Synonyms & Similar Words

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Synonym Chooser

How does the verb certify contrast with its synonyms?

Some common synonyms of certify are attest, vouch, and witness. While all these words 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

When would attest be a good substitute for certify?

The meanings of attest and certify largely overlap; however, attest applies to oral or written testimony usually from experts or witnesses.

attested to the authenticity of the document

In what contexts can vouch take the place of certify?

In some situations, the words vouch and certify are roughly equivalent. However, vouch applies to one who testifies as a competent authority or a reliable person.

willing to vouch for her integrity

When could witness be used to replace certify?

Although the words witness and certify 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 certify California California defies Trump order to certify that all school districts have eliminated DEI April 11, 2025 An Education Department spokesperson did not immediately respond to a request for comment. Holly Ramer, Los Angeles Times, 24 Apr. 2025 Over 5,500 research flights have been conducted at the ARI since it was certified as an unmanned aircraft systems test site. Kate Marijolovic, Fort Worth Star-Telegram, 23 Apr. 2025 The Vatican's director of health and hygiene certified Francis' death the evening of April 21. Eric Lagatta, USA Today, 23 Apr. 2025 Yost certified the petition summary on Tuesday, following the court's ruling, his office stated. Thomas G. Moukawsher, MSNBC Newsweek, 23 Apr. 2025 See All Example Sentences for certify
Recent Examples of Synonyms for certify
Verb
  • Early wins don’t necessarily guarantee long-term success, so continuous improvement is key.
    Hope Horner, Forbes.com, 23 Apr. 2025
  • Cousins' salary for the upcoming season is fully guaranteed.
    Chantz Martin, FOXNews.com, 23 Apr. 2025
Verb
  • Archer Aviation Archer's efforts to secure what's called 'Type Certification' from the Federal Aviation Administration (FAA) for Midnight could enable the eVTOL company to operate out of major airports.
    New Atlas, New Atlas, 17 Apr. 2025
  • Phishing attacks often attempt to get people to share personal information, like Social Security numbers, which enables criminals to access finances.
    Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025
Verb
  • The system can also verify that the individual presenting the document is both physically present and matches the ID photo, all completed remotely in minutes.
    Alonzo Martinez, Forbes.com, 25 Apr. 2025
  • Newsweek was not able to to independently verify whether all ranking officers killed belonged to Houthi military or police forces.
    Thomas G. Moukawsher, MSNBC Newsweek, 25 Apr. 2025
Verb
  • On the bench, like a trainer hyping up a boxer, Murray’s Denver Nuggets teammates continuously affirmed him, telling him to keep his head up, assuring him that good things would eventually start to happen.
    Tony Jones, New York Times, 20 Apr. 2025
  • Heineken reported first-quarter revenue growth that beat analysts’ expectations on Wednesday morning and affirmed its full-year guidance despite the tariff risks.
    Brandon Gomez, CNBC, 16 Apr. 2025
Verb
  • These centers are authorized by Congressional mandate to uphold Title 4 of the Civil Rights Act, while DEI policies, however laudable, are not.
    Raymond Pierce, Forbes.com, 25 Apr. 2025
  • After it was removed, the Cybertruck burst into flames again at a nearby tow yard, a person with knowledge of the incident not authorized to discuss it publicly told The Times.
    Ryan Kartje, Los Angeles Times, 25 Apr. 2025
Verb
  • But officials were not able to confirm if a blown tire was at fault for the crash.
    Ron Wilkins, USA Today, 26 Apr. 2025
  • But in the summer of 2023, Harry went on the Call Her Daddy podcast and seemingly confirmed their split by claiming his last girlfriend cheated on him.
    Joelle Goldstein, People.com, 25 Apr. 2025
Verb
  • Multiple users on Reddit attested to this, having experienced it firsthand during the ultra-brief pause on de minimis shipments from China implemented by the Trump administration in February.
    Kate Nishimura, Sourcing Journal, 21 Apr. 2025
  • But as any seasoned CFO will attest, mastering the numbers is only part of the equation.
    Pankaj Vasani, Forbes.com, 16 Apr. 2025
Verb
  • To empower [children] in that way is really important.
    Ellen Sturm Niz, Parents, 22 Apr. 2025
  • In an online space dominated by advertisements and garish displays of wealth, content that encourages users not to buy anything new can be both empowering and, in Dean’s words, kind of radical.
    Lovia Gyarkye, HollywoodReporter, 22 Apr. 2025

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Cite this Entry

“Certify.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certify. Accessed 29 Apr. 2025.

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