authenticate

verb
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

Keep scrolling for more

Other words from authenticate

authentication \ə-ˌthen-ti-ˈkā-shən, ȯ- \ noun
authenticator \-ˈthen-ti-ˌkā-tər \ noun

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

It’s unclear if new ways to authenticate images or detect fakes will keep pace with deepfake technology. Deb Riechmann, The Seattle Times, "I never said that! High-tech deception of ‘deepfake’ videos," 3 July 2018 It’s unclear if new ways to authenticate images or detect fakes will keep pace with deepfake technology. Deb Riechmann, BostonGlobe.com, "‘I never said that!’ The high-tech deception of ‘deepfake’ videos," 2 July 2018 Based on the binding dimensions (which were a perfect fit) and remnants of the original sewing, the consultant was able to authenticate Parsons’s letter. Deanna Paul, Washington Post, "The journey of a stolen Christopher Columbus letter recounting his voyage to America," 15 June 2018 Folklorists refer to these stories as legends because many people believe them to be true, even though the stories cannot be authenticated. James Deutsch, Smithsonian, "Some Stories About George Washington Are Just Too Good to Be True," 17 Feb. 2018 There was some confusion regarding which ball was used, but a Major League Baseball official authenticated one that Palka has back at home. Teddy Greenstein, chicagotribune.com, "A highlight from Joe McEwing’s playing days — helping survivors on 9/11," 27 Apr. 2018 Some might wonder if the tweets, provided they are authenticated as authored by Colangelo, could constitute a violation of the Health Insurance Portability and Accountability Act of 1996, which is better known as HIPAA. Michael Mccann, SI.com, "The Potential Legal Consequences of Bryan Colangelo's Twitter Controversy," 30 May 2018 The government had argued that DNA testing is faster than authenticating documents, and protects children — especially the youngest — from being handed to someone who may not be their biological parent. Ricardo Alonso-zaldivar And Elliot Spagat, chicagotribune.com, "Medical experts worry about testing DNA to reunite families," 11 July 2018 The government had argued that DNA testing is faster than authenticating documents, and protects children — especially the youngest — from being handed to someone who may not be their biological parent. Ricardo Alonso-zaldivar, The Seattle Times, "Test DNA of migrant kids only as last resort, ethicists say," 10 July 2018

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.

See More

First Known Use of authenticate

1613, in the meaning defined above

History and Etymology for authenticate

see authentic

Keep scrolling for more

Learn More about authenticate

Share authenticate

Statistics for authenticate

Last Updated

19 Sep 2018

Look-up Popularity

Time Traveler for authenticate

The first known use of authenticate was in 1613

See more words from the same year

Keep scrolling for more

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

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

Keep scrolling for more

Comments on authenticate

What made you want to look up authenticate? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

occurring twice a year or every two years

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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