authentication

noun

au·​then·​ti·​ca·​tion ə-ˌthen-ti-ˈkā-shən How to pronounce authentication (audio)
ȯ-
plural authentications
: an act, process, or method of showing something (such as an identity, a piece of art, or a financial transaction) to be real, true, or genuine : the act or process of authenticating something
Historically, the authentication of art fell to connoisseurs …Colette Bancroft
Encryption and decryption, combined with user authentication, ensure that only intended recipients read the messages.Sal Ricciardi
Mostly, notaries have to be adept at the authentication arts. In an era of multiple-personality disorder, cross-dressing, sex-change surgery and bogus IDs, people aren't always who they appear to be. On the notary public rests the responsibility to verify a person's true identity and attest to it.Colette Bancroft
Giving users a way to prove that they're being harassed with, say, a screenshot or some other form of authentication could help Twitter catch bad actors, even after they've covered their tracks.Issie Lapowsky
often used before another noun
authentication codes
authentication techniques
authentication keys

Examples of authentication in a Sentence

Recent Examples on the Web The entire incident with the home run ball should be replayed and she should be given her choice on whether to keep the ball, with full authentication, or accept a substitute. Los Angeles Times, 6 Apr. 2024 Modern identity systems support advanced capabilities such as multifactor authentication (MFA), pass keys, passwordless and more. Eric Olden, Forbes, 29 Mar. 2024 This partnership will add another level of authentication and security by enlisting NFTrends' unique and innovative DPP (Digital Product Passport) technologies. Miami Herald, 28 Mar. 2024 Prior to starting his own company in 2022, Firestein spent a decade as a luxury authenticator, including two years as the director of authentication at Rebag. Jasmine Li, Fortune, 27 Mar. 2024 Password managers Bitwarden and Enpass, among others, likewise have authentication built in. PCMAG, 21 Mar. 2024 Pack This Soluna two-pack is a highly vetted choice thanks to the company's easy-to-find ISO certification papers and authentication by the Amazon Transparency Program. Kelsey Chapman, ABC News, 27 Mar. 2024 The business card fetched the most money out of all the items related to Jobs and is one of only five business cards signed by the late tech titan from any period with authentication, according to RR Auction. Jody Serrano / Gizmodo, Quartz, 23 Mar. 2024 Left unchanged is the fact that many hospitals are small nonprofits with no one who can set up even minimal controls on online access, like multifactor authentication, instead of passwords alone. Joseph Menn, Washington Post, 19 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'authentication.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

authentic(ate) + -ation

First Known Use

1612, in the meaning defined above

Time Traveler
The first known use of authentication was in 1612

Dictionary Entries Near authentication

Cite this Entry

“Authentication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/authentication. Accessed 16 Apr. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!