Thesaurus results for TESTIFY (TO)

testify (to)

verb

Definition of testify (to)

as in to guarantee

to declare (something) to be true or genuine that auction house will always testify to a painting's authenticity

Synonyms & Similar Words

Relevance

Example Sentences

Recent Examples of Synonyms for testify (to)

Verb

These are ambitious development targets, not guarantees that commercially useful breakthroughs will follow immediately.

— Kaif Shaikh, Interesting Engineering, 1 Nov. 2026
Valkyries owner Joe Lacob guaranteed a championship within the first five years for this franchise three years ago when the Bay Area was granted an expansion team, and in improbable, joyful fashion, his team accomplished it in Year 2.

— Janie McCauley, Chicago Tribune, 1 Nov. 2026

Definition of guarantee

Verb

Counties have until Friday to certify complete results to the secretary of state.

— BILL BARROW, Arkansas Online, 8 Nov. 2026
Instead, it’s made from natural and organic materials, including breathable organic cotton, natural wool, and organic latex that’s certified by the Global Organic Latex Standard (GOLS), breathable organic cotton, and natural wool.

— Jacorey Moon, Architectural Digest, 7 Nov. 2026

Definition of certify

Verb

Spoelstra brought his two sons and daughter with him to the Heat’s game a day later, an affirming display of family first, as friends offered replacement toys and comfort items for the children.

— Ira Winderman, Sun Sentinel, 5 Nov. 2026
In a move designed to attract more voters, lawmakers attached language that would place a ban on gender-affirming care for minors in the Missouri Constitution.

— Kacen Bayless, Kansas City Star, 4 Nov. 2026

Definition of affirm

Verb

The person being vouched for also must sign an oath attesting to their identity and eligibility to vote, and must also provide their Minnesota driver’s license or identification card number or the last four digits of their Social Security number.

— Mark Vancleave, Los Angeles Times, 29 Oct. 2026
The person being vouched for also must sign an oath attesting to their identity and eligibility to vote, and must also provide their Minnesota driver's license or identification card number or the last four digits of their Social Security number.

— ABC News, ABC News, 28 Oct. 2026

Definition of attest

Verb

Their specialty is that shock, witnessed Saturday at the start of the fourth quarter with the game locked in a 17-all tie after a Gopher touchdown dart from Drake Lindsey to a leaping George Rohl seemingly gave the home team all the momentum.

— Los Angeles Times, Los Angeles Times, 7 Nov. 2026
The best rock bands create their greatest work with their backs against the wall — witness the Rolling Stones — and the legendary British hard-rock powerhouse Motorhead was no exception.

— Jem Aswad, Variety, 6 Nov. 2026

Definition of witness

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.

Browse Nearby Words

testifying (to)

testify (to)

testimonial

See all Nearby Words

Cite this Entry

Style

“Testify (to).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/testify%20%28to%29. Accessed 9 Nov. 2026.

Copy Citation

Synonyms of testify (to)

verb

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

wabi-sabi

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Popular in Wordplay

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

7 Words for Old-Timey Vehicles

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

How to Use 'Who' vs. 'Whom'

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

Games & Quizzes