Synonyms of authenticating

authenticating

verb

present participle of authenticate

1

as in certifying

to declare (something) to be true or genuine

a jeweler authenticated the diamond as real

Synonyms & Similar Words

• certifying
• guaranteeing
• attesting
• affirming
• testifying (to)
• asserting
• witnessing
• vouching (for)
• avouching
• warranting
• averring
• vowing
• professing
• avowing

2

as in verifying

to give evidence or testimony to the truth or factualness of

we require more than simply your word to authenticate this story

Synonyms & Similar Words

• verifying
• confirming
• arguing
• supporting
• validating
• certifying
• corroborating
• proving
• attesting
• vindicating
• demonstrating
• substantiating
• witnessing
• establishing
• bearing out
• affirming
• reinforcing
• documenting
• testifying (to)
• guaranteeing
• asserting
• declaring
• backing (up)
• averring
• vouching (for)
• professing
• warranting
• avouching
• avowing

Antonyms & Near Antonyms

• disproving
• refuting
• rebutting
• denying
• contradicting
• disavowing
• disclaiming
• questioning
• contesting
• challenging
• disputing
• gainsaying

Example Sentences

Recent Examples of authenticating

The auction house has spent the last four months authenticating and valuing the haul. — Oscar Holland, CNN Money, 14 Sep. 2026

But for domestic travel, authenticating yourself with your face remains a choice. — Rob Pegoraro, PC Magazine, 7 Sep. 2026

As chief election officer, Howden will assist county officials and ensure uniform application of Texas election laws while also authenticating state records. — Mateo Rosiles, USA Today, 17 July 2026

Turns out the son still had possession of the dress, so then there was the question of authenticating it. — Rance Collins, Entertainment Weekly, 17 July 2026

Each component in the UEFI loader carries metadata that is signed by the same certificate authenticating the binary itself. — Dan Goodin, ArsTechnica, 14 July 2026

The definition of sports memorabilia has expanded in recent years alongside a boom in collecting and the support of companies like The Realest, which has developed an expertise in authenticating off-beat items, from Lincoln Financial Field snow to a Ryder Cup rake. — Jacob Feldman, Sportico.com, 14 June 2026

Web APIs call other APIs across sovereign boundaries, and through all these endpoints, identity remains the persistent thread interlinking, authenticating and authorizing everything humans touch. — Morey Haber, Forbes.com, 1 June 2026

Land Rover has now taken a high-profile step in authenticating the Defender’s pedigree at the most grueling, and prestigious, off-road race venue on the planet. — Karl Brauer, Robb Report, 19 Jan. 2026