authenticate

verb au·then·ti·cate \ ə-ˈthen-ti-ˌkāt , ȯ- \
Updated on: 7 Dec 2017

Definition of authenticate

authenticated; authenticating
transitive verb
: to prove or serve to prove to be real, true, or genuine
  • authenticate a document

authentication

play \-ˌthen-ti-ˈkā-shən\ noun

authenticator

play \-ˈthen-ti-ˌkā-tər\ noun

Examples of authenticate in a Sentence

  1. The signature has been authenticated.

  2. a jeweler authenticated the diamond as real

Recent Examples of authenticate from the Web

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.

Origin and Etymology of authenticate

authenticate Synonyms

Synonym Discussion of 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

AUTHENTICATE Defined for English Language Learners

authenticate

verb

Definition of authenticate for English Language Learners

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


AUTHENTICATE Defined for Kids

authenticate

verb au·then·ti·cate \ ə-ˈthen-ti-ˌkāt \

Definition of authenticate for Students

authenticated; authenticating
: to prove or serve as proof that something is authentic

Law Dictionary

authenticate

transitive verb au·then·ti·cate

legal Definition of authenticate

authenticated; authenticating
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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