certify Hear it!

certify definition

cer·tify (sʉrtə fī′)

transitive verb certified -·fied′, certifying -·fy′·ing

  1. to declare (a thing) true, accurate, certain, etc. by formal statement, often in writing; verify; attest
  2. to declare officially insane and committable to a mental institution
  3. ☆ to guarantee the quality or worth of (a check, document, etc.); vouch for
  4. to issue a certificate or license to
  5. Archaic to assure; make certain

Etymology: ME certifien < OFr certifier < LL certificare < L certus, certain + -fy

intransitive verb

to testify (to)

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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