authenticate

verb

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au·then·ti·cate | \ ə-ˈthen-ti-ˌkāt

, ȯ- \

authenticated; authenticating

Definition of authenticate

transitive verb

: to prove or serve to prove to be real, true, or genuine authenticate a document

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Choose the Right Synonym for authenticate

confirm, corroborate, substantiate, verify, authenticate, validate mean to attest to the truth or validity of something. confirm implies the removing of doubts by an authoritative statement or indisputable fact. confirmed the reports corroborate suggests the strengthening of what is already partly established. witnesses corroborated his story substantiate implies the offering of evidence that sustains the contention. the claims have yet to be substantiated verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at. all statements of fact in the article have been verified authenticate implies establishing genuineness by adducing legal or official documents or expert opinion. handwriting experts authenticated the diaries validate implies establishing validity by authoritative affirmation or by factual proof. validated the hypothesis by experiments

Examples of authenticate in a Sentence

The signature has been authenticated. a jeweler authenticated the diamond as real

Recent Examples on the Web That's because as part of the process to authenticate file sharing, AirDrop checks phone numbers and email addresses against the other user's address book. — Mike Snider, USA TODAY, "Researchers say changing simple iPhone setting fixes long-standing privacy bug," 25 Apr. 2021 NFTs use blockchain technology to authenticate unique digital assets, including art, music or even basketball highlights. — Sahil Patel, WSJ, "Overtime Raises $80 Million From Jeff Bezos, Drake, NBA Stars and Others," 22 Apr. 2021 Somehow, Roget managed to track down Jean Roget’s baptismal certificate as well as a regional official who could authenticate the father-son relationship. — Claudia Kalb, Smithsonian Magazine, "Before He Wrote a Thesaurus, Roget Had to Escape Napoleon’s Dragnet," 21 Apr. 2021 Magistrates have authorized the FBI to search such information for all relevant material to be copied and retained while sealing the rest pending further court order or potential use to authenticate evidence at trial. — Author: Spencer S. Hsu, Anchorage Daily News, "Justice Dept. calls Jan. 6 ‘Capitol Attack’ probe one of largest in U.S. history, expects at least 400 to be charged," 13 Mar. 2021 Magistrates have authorized the FBI to search such information for all relevant material to be copied and retained while sealing the rest pending further court order or potential use to authenticate evidence at trial. — Washington Post, "Justice Dept. calls Jan. 6 ‘Capitol Attack’ probe one of largest in U.S. history, expects at least 400 to be charged," 10 Mar. 2021 Additionally, the customer must register their device and authenticate the device via a text message sent to their phone number of record. — Michael Mcdaniel, The Arizona Republic, "Arizona rolls out new Mobile ID driver's license to combat identity theft," 26 Mar. 2021 The private key used to authenticate microcode does not reside in the silicon, and an attacker cannot load an unauthenticated patch on a remote system. — Dan Goodin, Ars Technica, "In a first, researchers extract secret key used to encrypt Intel CPU code," 28 Oct. 2020 All someone will need to do to authenticate a payment is pop their thumb onto one of the chips embedded into the card. — Bill Hardekopf, Forbes, "This Week In Credit Card News: Biometric Credit Cards; Will Bitcoin Become Currency Of Choice For Global Trade?," 5 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'authenticate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Last Updated

28 Apr 2021

Cite this Entry

“Authenticate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/authenticate. Accessed 7 May. 2021.

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More Definitions for authenticate

authenticate

verb

English Language Learners Definition of authenticate

: to prove that something is real, true, or genuine : to prove that something is authentic

See the full definition for authenticate in the English Language Learners Dictionary

authenticate

verb

au·then·ti·cate | \ ə-ˈthen-ti-ˌkāt

authenticated; authenticating

Kids Definition of authenticate

: to prove or serve as proof that something is authentic

authenticate

transitive verb

au·then·ti·cate

authenticated; authenticating

Legal Definition of authenticate

1 : to prove or serve to prove that (something) is genuine especially : to prove that (an item of evidence) is genuine for the purpose of establishing admissibility

2 : to make (a written instrument) valid and effective by marking especially with one's signature authenticate a check

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