To establish the authenticity of; prove genuine: a specialist who authenticated the antique samovar. See Synonyms at confirm.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "authenticate" in a sentence
"Therefore, we call authenticate and allow an ugly override for edge cases:"
"And she says she can't prove or authenticate, which is shameful for someone who has won the kind of distinction she has in the past."
"You are allowed to feel the way you want but this incident will not "authenticate" it."