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

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Example Sentences

Recent Examples of Synonyms for testify (to)
Verb
  • Secure, redundant communication systems ensure instant presidential command, while E-6B airborne launch control aircraft can assume control if ground communication is lost, guaranteeing uninterrupted deterrence capability.
    Neetika Walter, Interesting Engineering, 9 Oct. 2025
  • The result of your entry doesn't matter, making the $100 bonus guaranteed.
    Tyler Everett, MSNBC Newsweek, 8 Oct. 2025
Verb
  • The company has the world’s first platinum Leadership in Energy and Environmental Design (LEED) denim manufacturing facility certified by the United States Green Building Council.
    Angela Velasquez, Sourcing Journal, 6 Oct. 2025
  • The nearest town of Torrey is certified as a Dark Sky Community, too.
    Stephanie Vermillion, Travel + Leisure, 5 Oct. 2025
Verb
  • North Korea and its new military ally Russia have repeatedly affirmed their closer relationship since signing a mutual defense pact last year, and Kim has sent thousands of troops, missiles and munitions to assist Moscow’s war in Ukraine.
    Helen Regan, CNN Money, 9 Oct. 2025
  • Federal officials repeatedly sought to calm public anxieties, affirming no evidence of foreign involvement or ill intent behind the sightings.
    Robert Birsel, MSNBC Newsweek, 8 Oct. 2025
Verb
  • As most pregnant people can attest, talking to your baby while they are still safely tucked away in the womb is one of the most comforting ways to feel that the two of you are connected.
    Elisabeth Sherman, Parents, 8 Oct. 2025
  • But, as those of us who speak Spanish daily can attest, many still look down on Spanish as a language, and definitely on the people who speak it.
    Leila Cobo, Billboard, 8 Oct. 2025
Verb
  • My grief from witnessing what has been done to my people is so vast, so relentless, that sadness over my grandmother’s death feels like something too indulgent.
    Reem Kassis, The Atlantic, 11 Oct. 2025
  • Thomas, who lives in the area and witnessed the detainment, recalled the scene to WGN-TV.
    Bailey Richards, PEOPLE, 11 Oct. 2025
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.

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Cite this Entry

“Testify (to).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/testify%20%28to%29. Accessed 14 Oct. 2025.

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