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attest

American  
[uh-test] / əˈtɛst /

verb (used with object)

  • attests,
    present (3rd person singular)
  • attested,
    past participle,  past
  • attesting
    present participle
  1. to bear witness to; certify; declare to be correct, true, or genuine; declare the truth of, in words or writing, especially to affirm in an official capacity.

    to attest the truth of a statement.

  2. to give proof or evidence of; manifest.

    His works attest his industry.

  3. Linguistics. to give evidence of the existence of (a word, phrase, usage, etc.), especially in writing: The dictionary attests this meaning as early as 1890.

    The plural form is attested in ancient texts.

    The dictionary attests this meaning as early as 1890.

  4. to put on oath.


verb (used without object)

  • attests,
    present (3rd person singular)
  • attested,
    past participle,  past
  • attesting
    present participle
  1. to testify or bear witness (often followed byto ).

    to attest to the reliability of an employee.

noun

  1. Archaic. witness; testimony; attestation.

attest British  
/ əˈtɛst /

verb

  1. (tr) to affirm the correctness or truth of

  2. to witness (an act, event, etc) or bear witness to (an act, event, etc) as by signature or oath

  3. (tr) to make evident; demonstrate

    his life of luxury attests his wealth

  4. (tr) to provide evidence for

    the marks in the ground attested the presence of a fossil

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of attest

First recorded in 1590–1600; < Middle French attester, from Latin attestārī “to bear witness to, affirm, confirm” equivalent to at- at- + testārī “to witness” ( see testis ( def. ))


Explanation

To attest is to prove or declare to be true. For example: the fact that you aced the SAT attests to the strength of your vocabulary. Attest and testify come from the same Latin word testari, which means "to declare." Although both words are kind of formal, you often testify in a courtroom, but attest doesn't require a court of law to function. You can attest to anything — that the funny looking shoes toned your thighs, that what someone says is true, or that the new acne medicine really works. To remember it, think of when you pass a test, you attest that you know the material.

Keep Reading on Vocabulary.com

Vocabulary lists containing attest

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Money, as this column can attest to, makes that even more complicated.

From MarketWatch ● Sep. 21, 2026

Past team-mates for club and country will queue up to attest to his character as a player and a person.

From BBC ● Sep. 21, 2026

None of this is bad on its own, as millions of Sims fans can attest.

From Slate ● Sep. 6, 2026

Ron Burda, 85, recently bought a new Toyota RAV4 and can attest that he hates the driver-assistance technology—but not because he’s older.

From The Wall Street Journal ● Jul. 30, 2026

Greek art reached a pinnacle of beauty as respect for the individual flourished in Athens, and Roman relics attest to the might of the greatest empire in the ancient world.

From "The Annotated Mona Lisa" by Carol Strickland and John Boswell

Shew said he’s only supposed to be given registrations to process if the would-be voter attests they are a U.S. citizen, as federal law requires.

From Salon ● May 14, 2026

SpaceX’s forthcoming initial public offering attests to the boom in space travel.

From The Wall Street Journal ● Apr. 18, 2026

Jean has two personalities, he attests: “the peaceful one here, and the bonkers one onstage.”

From Los Angeles Times ● Feb. 25, 2026

"Belen Garijo's brilliant international career attests to her strategic vision and her ability to drive profound and value-creating transformations," board chairman Frederic Oudea said in a statement.

From Barron's ● Feb. 12, 2026

Gorgias’s brother Herodicus is a doctor, and the former attests that when trying to persuade a patient to submit to a course of treatment, his oratory is far more effective than his brother’s medical expertise.

From "Words Like Loaded Pistols" by Sam Leith

His long, productive career encompassed more than six decades, in each of which his live performances and recordings continually attested to his preeminence as one of jazz history’s most vital, innovative and influential artists.

From Los Angeles Times ● May 26, 2026

In letters to the court, family and friends, including Perla Hudson, the ex-wife of musician Slash, attested to Sangha’s character.

From The Wall Street Journal ● Apr. 8, 2026

A large, gestural 1972 painting attested to a road not taken, while records of his sojourns in Europe and Africa revealed the influence of architecture on abstract structure.

From The Wall Street Journal ● Nov. 25, 2025

Imposing “an entirely new command structure,” she attested, would “wreak operational havoc within MPD,” “create tremendous risk for the public,” and “inevitably lead to delays and confusion.”

From Slate ● Aug. 15, 2025

The names of neither father nor son are attested much elsewhere.

From "Circumference" by Nicholas Nicastro

A medical letter attesting to your mother’s health might help.

From MarketWatch ● Aug. 27, 2026

Even attesting to the Irish that they don’t do any of the banned trade would be a U.S. violation.

From The Wall Street Journal ● Jun. 4, 2026

"Then, the video attesting to the truth would be shown," she says.

From BBC ● Feb. 14, 2026

Just seven weeks later, he got another mortgage for a seven-bedroom, marble-floored neighboring property, attesting that it too would be his principal residence.

From Salon ● Dec. 8, 2025

Kamen reached out to Lawrence for a deposition attesting to his loyalty, of which Lawrence in fact had no doubt.

From "Big Science" by Michael Hiltzik

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