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witness

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verb

1
as in to attest
to declare (something) to be true or genuine a notary public witnessing wills and other important documents

Synonyms & Similar Words

2
3
as in to testify
to make a solemn declaration under oath for the purpose of establishing a fact I witnessed to the fact that I had seen them together that night

Synonyms & Similar Words

4
as in to experience
to come to a knowledge of (something) by living through it war changes anyone who has ever witnessed it first hand

Synonyms & Similar Words

Synonym Chooser

How does the verb witness contrast with its synonyms?

Some common synonyms of witness are attest, certify, and vouch. While all these words mean "to testify to the truth or genuineness of something," witness applies to the subscribing of one's own name to a document as evidence of its genuineness.

witnessed the signing of the will

When can attest be used instead of witness?

While the synonyms attest and witness are close in meaning, attest applies to oral or written testimony usually from experts or witnesses.

attested to the authenticity of the document

In what contexts can certify take the place of witness?

The meanings of certify and witness largely overlap; however, 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 witness?

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

willing to vouch for her integrity

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 witness
Noun
Laffont and Parker are Renée’s primary sounding boards for their investigation into Driscoll, Olivas, and the other dirty cops, and Rawls pounds the pavement to search for witnesses and suspects to their various cold cases. Roxana Hadadi, Vulture, 11 July 2025 Bullets rained down on the crowd, striking the three women, along with multiple occupied and unoccupied cars, as children and families ran for cover, according to the attorneys and witnesses. Shira Moolten, Sun Sentinel, 11 July 2025
Verb
But all of us will witness the suffering and despair. Donna Vickroy, Chicago Tribune, 11 July 2025 After witnessing Helene’s destruction, Hurlbert has a sense of how words can fail to provide the comfort needed in the aftermath of tragedy. Madeline Holcombe, CNN Money, 11 July 2025 See All Example Sentences for witness
Recent Examples of Synonyms for witness
Noun
  • In his ruling in one of the lawsuits, Court of Claims Judge Louis Benza cited the testimony of a veteran New York City police officer who said the doors to the gym were blocked by a table.
    Ray Sanchez, CNN Money, 5 July 2025
  • Cox is accused of hiring a former client to damage his ex-girlfriend's car in retaliation for her testimony against him in a prior case.
    Quinlan Bentley, The Enquirer, 4 July 2025
Verb
  • One shopper even attests to fitting up to seven days’ worth of clothes inside.
    Erin Cavoto, Travel + Leisure, 7 July 2025
  • Even so, notary public Jessie Ruth Graham attested to a weight of 1,780 pounds, a girth of 103 inches, and a length of 13 feet 10.5 inches.
    Donald Millus, Outdoor Life, 3 July 2025
Verb
  • Sports fans may notice a difference in the race calls this season as longtime announcer Trevor Denman announced his retirement in March.
    Kelley Carlson, San Diego Union-Tribune, 5 July 2025
  • Residents in the area may continue to notice a gas-like odor.
    Maia Pandey, jsonline.com, 4 July 2025
Verb
  • McGee, the driver of the car, is also expected to testify.
    Anne Marie D. Lee, CBS News, 14 July 2025
  • Scott has since agreed to a plea deal and testified as a key witness for the prosecution in Serafini’s trial.
    Rosalio Ahumada, Sacbee.com, 14 July 2025
Verb
  • It was supposed to have a lease agreement approved in April, but after experiencing two board member resignations, the loss of three staff members and the lack of an executive director, the museum was given a list of concerns to address by Aug. 31.
    Sophia Tiedge, jsonline.com, 9 July 2025
  • Some people experience nausea and diarrhea after consuming a large amount of turmeric.14 Research has also linked turmeric intake to a potential risk of liver injury, but more evidence is needed to understand the extent.21 Garlic may cause discomfort if consumed in excess.
    Chelsea Rae Bourgeois, Health, 9 July 2025
Noun
  • Slade said police dragged their feet in investigating firework attacks and dropped the case after three weeks for lack of evidence.
    Maritza Dominguez, AZCentral.com, 8 July 2025
  • Świątek fans later posted evidence of Azarenka doing the same thing, in the same match, on social media.
    Charlie Eccleshare, New York Times, 8 July 2025
Verb
  • The case changed legal precedent and was the inspiration for two new state laws, one of which requires judges to certify a verdict immediately.
    Kirsten Fiscus, The Tennessean, 6 July 2025
  • They are certified to national wildland firefighting standards.
    Sean Krofssik, Hartford Courant, 4 July 2025
Verb
  • What areas in Texas have flooded? Can't see our graphics?
    George Petras, USA Today, 8 July 2025
  • The third edition of this category sees four out of five honorees return, mainly owing to their outstanding portfolios and strength of service.
    Sarah Bruning, Travel + Leisure, 8 July 2025

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Cite this Entry

“Witness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/witness. Accessed 19 Jul. 2025.

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