AUTHENTICATION Synonyms: 35 Similar and Opposite Words

authentication

noun

Definition of authentication

as in verification

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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 authentication Sysdig said JadePuffer entered through an internet exposed Langflow instance by using CVE 2025 3248, a missing authentication flaw in the code validation endpoint that allowed unauthenticated Python execution on the host. — Ron Schmelzer, Forbes.com, 10 July 2026 In reality, neither service’s support team works this way, and no support technician will ever ask you for an authentication code or your credentials out of the blue, whether the service is Reddit, Discord, your bank, or anything else. — Alan Henry, PC Magazine, 10 July 2026 In the payments space, 82 percent of fraud attempts target the authentication process, while digital banking sees 55 percent of fraud attacks occurring after onboarding. — Arthur Zaczkiewicz, Footwear News, 7 July 2026 Others use email authentication or additional account-confirmation processes. — Matthew Kayser updated July 6, Miami Herald, 6 July 2026 See All Example Sentences for authentication

Recent Examples of Synonyms for authentication

Noun

Letters may be up to 200 words and must be signed with your email address, city of residence and daytime phone number for verification.

— Sun Sentinel Editorial Board, Sun Sentinel, 13 July 2026
The European Commission is working on its own age verification app that will let users prove their age while keeping their identity anonymous.

— ABC News, ABC News, 13 July 2026

Definition of verification

Noun

Furthermore, Ding emphasized that the technology still requires real-world validation before it can be widely adopted.

— Bojan Stojkovski, Interesting Engineering, 18 July 2026
Of course, under whatever rules, Oscar validation can mean the difference between multi-platform distribution and oblivion in the American marketplace.

— Thomas Doherty, HollywoodReporter, 18 July 2026

Definition of validation

Noun

Each of our squirrel-proof bird feeder picks is top rated on Amazon, and our list includes popular brands like Brome, Kingsyard, and Perky-Pet.

— Stephanie Osmanski, Better Homes & Gardens, 6 July 2026
White sneakers tend to lead the trends come spring and summer, but Styles is proof that a black pair of comfy kicks is just as wearable—with a slightly more edgy feel.

— Reece Andavolgyi, InStyle, 5 July 2026

Definition of proof

Noun

The exhibit starts past the old castle-like entrance to the water park, where staff check identification.

— Camila Pedrosa, Sacbee.com, 19 July 2026
And many nonprofits do help with other re-entry services like getting identification documents or employment counseling.

— Amber Gaudet July 18, Charlotte Observer, 18 July 2026

Definition of identification

Noun

Conversely, there are moments throughout Pompeii where the trail goes cold due to insufficient documentation from 2,000 years ago, frustrating Hiddleston in the process.

— Brian Davids, HollywoodReporter, 16 July 2026
The rate was $485 a night, according to expense documentation provided to the Herald through the records request.

— Douglas Hanks, Miami Herald, 15 July 2026

Definition of documentation

Noun

Acting Attorney General Todd Blanche appears at his confirmation hearing in front of the Senate Judiciary Committee, on Capitol Hill in Washington, July 15, 2026.

— Dan Mangan, CNBC, 17 July 2026
Fix, who has experienced the upsell scam herself, recommends bringing a printout (yes, a paper printout) of your confirmation.

— Christopher Elliott, USA Today, 17 July 2026

Definition of confirmation

Browse Nearby Words

authenticating

authentication

authentications

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Cite this Entry

Style

“Authentication.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/authentication. Accessed 20 Jul. 2026.

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Synonyms of authentication

noun

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