1. To prove the truth of by presentation of evidence or testimony; substantiate.
2. To determine or test the truth or accuracy of, as by comparison, investigation, or reference: experiments that verified the hypothesis. See synonyms at confirm.
3. Law.
   1. To affirm formally or under oath.
   2. To append a verification to (a pleading); conclude with a verification.

[Middle English verifien, from Old French verifier, from Medieval Latin vērificāre : Latin vērus, true + Latin -ficāre, -fy.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.