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 Complete any required authentication or identity verification. — Kurt Knutsson, FOXNews.com, 25 Oct. 2026 The attempt abused the first PHP flaw, CVE-2026-109618, which can allow an attacker to execute rogue computer code without authentication. — Michael Kan, PC Magazine, 21 Oct. 2026 The 21 states fully running their own marketplaces generally have more robust fraud prevention programs, such as multifactor authentication, and have reported few or none of the kinds of unauthorized sign-ups plaguing the federal marketplace. — Julie Appleby, Miami Herald, 16 Oct. 2026 This capability builds on existing call-authentication standards, says executive vice president James Garvert. — Rob Pegoraro, Time, 15 Oct. 2026 See All Example Sentences for authentication

Recent Examples of Synonyms for authentication

Noun

Avoid relying on text-message verification if your phone number may be compromised.

— Kurt Knutsson, FOXNews.com, 24 Oct. 2026
Those who fail to scan the address verification QR code within seven days will see their account demoted to the free tier and be barred from joining any other Duo or Family plan for 12 months.

— Nick Indge, ArsTechnica, 23 Oct. 2026

Definition of verification

Noun

Under federal law, they're typically required to provide a validation notice during their initial communication or within five days afterward.

— Angelica Leicht, CBS News, 28 Oct. 2026
The $5,000 prize mattered to the team, but the validation that came with winning the pitch competition was important in itself.

— Michael Butler, Miami Herald, 28 Oct. 2026

Definition of validation

Noun

And the evidence uncovered by Chair Loudermilk raises serious questions about Speaker Pelosi's role in those decisions.

— Arkansas Online, Arkansas Online, 27 Oct. 2026
The president has touted billions of dollars in federal investment projects as evidence of prosperity and pointed to rising wages in the manufacturing sector as evidence of an economic turnaround.

— Amy L. Wong, Washington Post, 27 Oct. 2026

Definition of evidence

Noun

The presence of anyone’s name or image in the files isn’t proof of wrongdoing.

— Danica Kirka, Los Angeles Times, 31 Oct. 2026
The 2026 version of the bill, known as the SAVE America Act, would require voters nationwide to provide proof of citizenship to register and present a photo ID to vote, and would compel states to turn over their voter rolls to DHS.

— ProPublica, ProPublica, 30 Oct. 2026

Definition of proof

Noun

Voters in six states will soon decide whether to impose or expand voter identification requirements, including rules requiring mail voters to provide part of a driver’s license or Social Security number.

— Kaelan Deese, The Washington Examiner, 25 Oct. 2026
The footage showed the vehicles entering and exiting the site and allowed investigators to capture their vehicle identification numbers, which were forwarded to CBP, according to Earley.

— Milena Malaver, Miami Herald, 24 Oct. 2026

Definition of identification

Noun

The students on Thursday asked public servants to prevent outgoing officials from destroying documentation or evidence of potential wrongdoing.

— Arkansas Online, Arkansas Online, 30 Oct. 2026
The statement said four members of the Bolsonaro family presented valid documentation and had no legal impediments to entering the country, despite the fact that Brazilian Justice had annulled their passports.

— Florencia Cabral, Miami Herald, 28 Oct. 2026

Definition of documentation

Noun

That refusal does not bode well for their ability to impartially decide matters involving this administration, and underscores the importance of the Senate’s confirmation power.

— James Speyer, New York Daily News, 30 Oct. 2026
Trump, in his inimitable way, has tried to get around that by appointing acting people and appointing people to jobs that don’t require Senate confirmation, and so on, and then basically outsourcing large parts of the government.

— David Remnick, New Yorker, 30 Oct. 2026

Definition of confirmation

Browse Nearby Words

authenticating

authentication

authentications

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“Authentication.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/authentication. Accessed 1 Nov. 2026.

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Synonyms of authentication

noun

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