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 Strong authentication can still fail if attackers can reset an account through an old phone number, weak recovery email or security question. — Expert Panel®, Forbes.com, 13 Oct. 2026 Completing passkey authentication only requires you to enter a PIN or complete a fingerprint or facial scan. — Brian Westover, PC Magazine, 12 Oct. 2026 Protection for the moment someone slips The report recommends building stronger authentication into onboarding. — Tatiana Sataua, Fortune, 9 Oct. 2026 The weak link in the chain TLS certificates are the cryptographic credentials that underpin authentication and encryption protections for websites, mail servers, and other Internet infrastructure. — Dan Goodin, ArsTechnica, 6 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

Future vehicles will also be able to check their electrical connections during assembly, potentially eliminating a final electrical validation step.

— Neetika Walter, Interesting Engineering, 23 Oct. 2026
Florida Insurance Commissioner Michael Yaworsky has called the consultant’s work an unfinished draft containing errors, inconsistencies, outdated information and data-validation problems.

— Matthew T. Christ, Sun Sentinel, 22 Oct. 2026

Definition of validation

Noun

State officials said the isolated instances of noncitizens voting, if accurate, are not evidence of widespread voter fraud.

— Kevin Rector, Los Angeles Times, 20 Oct. 2026
Experimental evidence for the equation, however, remained restricted to the subatomic domain for many decades.

— Philipp Strasberg, Scientific American, 20 Oct. 2026

Definition of evidence

Noun

Nevertheless, some come away from the experience assuming the worst — that the anecdotal issues are proof of a partisan election-rigging scheme.

— Ali Swenson, Los Angeles Times, 23 Oct. 2026
Treat unexpected activity as a reason to investigate rather than proof of infection.

— Kurt Knutsson, FOXNews.com, 23 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

South African President Cyril Ramaphosa has denounced violence related to immigration but has also acknowledged failures in the border control system over years that have allowed migrants to travel to and stay in South Africa without documentation.

— ABC News, ABC News, 22 Oct. 2026
Mortgage decisions draw from federal requirements, agency rules, state and county regulations, loan-program guidelines, borrower documentation, and lender-specific overlays.

— Ethan Stone, Sacbee.com, 22 Oct. 2026

Definition of documentation

Noun

Either way, the retailer remains the seller of record and handles order confirmations and customer support.

— Kurt Knutsson, FOXNews.com, 22 Oct. 2026
However, these are potential applications of the technology rather than confirmation that this specific reactor is ready for operational use.

— Prabhat Ranjan Mishra, Interesting Engineering, 22 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 25 Oct. 2026.

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Synonyms of authentication

noun

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