AUTHENTICATION Synonyms: 35 Similar and Opposite Words

authentication

noun

Definition of authentication

as in verification

Related Words

Relevance

Dissimilar Words

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 The data was, as with many breaches like this, obtained by exploiting a vulnerability in a third-party authentication tool, in this case Okta, which has had its own share of security woes. — Alan Henry, PC Magazine, 30 Oct. 2026 The flaws could allow hackers to remotely execute malicious code on vulnerable servers without authentication. — Contessa Brewer, CNBC, 29 Oct. 2026 The authentication process combines human expertise and AI integration to flag any suspicious activity and ensure that listings follow commercial industry standards. — Sophie Lou Wilson, Vogue, 26 Oct. 2026 All have been given the tick of approval by AP, with the in-house team following a meticulous authentication process. — Rachel Cormack, Robb Report, 26 Oct. 2026 See All Example Sentences for authentication

Recent Examples of Synonyms for authentication

Noun

The measure’s medical-verification requirement has become a central point of contention.

— Jackson Thompson OutKick, FOXNews.com, 7 Nov. 2026
The company conducted its latest demonstration in Yueyang, Hunan Province, bringing the technology closer to an urban environment after completing a high-altitude flight verification in northwest China back in August.

— Bojan Stojkovski, Interesting Engineering, 7 Nov. 2026

Definition of verification

Noun

Her victory served as validation for Democrats' long deferred dream that demographic changes in the state would be followed by a shift in political power.

— Arkansas Online, Arkansas Online, 4 Nov. 2026
The grant money will be used to purchase equipment and software and pursue validation of equipment and testing.

— Susan Sarkauskas, Chicago Tribune, 2 Nov. 2026

Definition of validation

Noun

This could help scientists avoid mistaking geological activity for evidence of extraterrestrial organisms.

— Neetika Walter, Interesting Engineering, 3 Nov. 2026
School officials contacted law enforcement, and Modesto police investigated the allegations, reviewing video evidence that resulted in one juvenile being cited for misdemeanor battery.

— Sacbee.com, Sacbee.com, 3 Nov. 2026

Definition of evidence

Noun

The group previously proved a special case of the conjecture in August 2026 and is preparing a shorter exposition of PSI’s full proof for other experts.

— Neetika Walter, Interesting Engineering, 7 Nov. 2026
This comes at a time when brands, especially those that operate within the European Union, face increasing pressure to show credible proof that their operations meet stringent industry standards on environmental sustainability.

— Roy Stephen Canivel, Footwear News, 6 Nov. 2026

Definition of proof

Noun

Police said a standing reward of up to $50,000 was offered to anyone with information leading to the driver's identification, arrest and conviction through Los Angeles' Administrative Code Hit-and-Run Reward Program Trust Fund.

— Dean Fioresi, CBS News, 8 Nov. 2026
Citizens who had identification issues have until Tuesday to address those matters in person at their local elections office.

— BILL BARROW, Arkansas Online, 8 Nov. 2026

Definition of identification

Noun

That can help preserve the documentation if a computer fails or the account holder needs to substantiate a reimbursement years later.

— Stephanie Dhue,Sharon Epperson, CNBC, 5 Nov. 2026
The country must still decide whether to proceed with a formal nomination and prepare the documentation required to demonstrate the property’s OUV.

— Karina Acharya, Condé Nast Traveler, 4 Nov. 2026

Definition of documentation

Noun

After years of being on the losing end of highly partisan confirmation fights against Republicans, especially on Supreme Court nominees, Democrats will be under considerable pressure to wield the same type of aggressive tactics.

— Seung Min Kim, Chicago Tribune, 6 Nov. 2026
Prince Harry and their two children might join her during her stay in Australia, but there’s no confirmation of that yet.

— Stefania Conrieri, Vanity Fair, 6 Nov. 2026

Definition of confirmation

Browse Nearby Words

authenticating

authentication

authentications

See all Nearby Words

Cite this Entry

Style

“Authentication.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/authentication. Accessed 10 Nov. 2026.

Copy Citation

Synonyms of authentication

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

defer

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