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v. cer·ti·fied, cer·ti·fy·ing, cer·ti·fies
a. To confirm formally as true, accurate, or genuine: The police certified that a suspect had been arrested.
b. To guarantee as meeting a standard: butter that was certified Grade A.
2. To acknowledge in writing on the face of (a check) that the signature of the maker is genuine and that there are sufficient funds on deposit for its payment.
3. To issue a license or certificate to.
4. To declare to be in need of psychiatric treatment or confinement.
5. Archaic To inform positively; assure.
To vouch for the authenticity of something: certify to the facts.

[Middle English certifien, from Old French certifier, from Late Latin certificāre : Latin certus, certain; see certain + Latin -ficāre, -fy.]

cer′ti·fi′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
quality of an alternative certifier; (ii) for buyer, costs incurred to
A call to NRA will get you in touch with your nearest NRA training counselor, the trainer and certifier of instructors authorized to teach their programs.
Until 2003, there were no bodies based in the country qualified to certify produce as organic, until IMC, an Italian certifier began working here.
TransFair USA, the leading independent, third-party certifier of Fair Trade products in the U.S., announces Jennifer R.
The seal means that the NPA and an independent third-party certifier have reviewing the product's ingredients and manufacturing processes and determined that it meets the organization's guidelines.
Until last May, AZPA's certifier was California-based Quality Assurance International, a major player in the global organic trade--it certifies two-thirds of all organic food on US grocery store shelves.
This finding is complemented by insights gained from a supplementary framed field experiment that was conducted in 1997, when PSA acted as the monopolist certifier: when the same card copy was auctioned with and without the PSA grade, nondealers adjusted their bids in response to the publicized PSA grade, whereas dealers did not change their bidding distribution.
Now available from Ideal Networks is the LanTEK IV, a copper and fibre cable certifier designed to provide faster test times.
'They can still continue their business as a certifier but they need to renew their businesses within this year under PAB to be duly acknowledged as a certifier here in our country,' Ampuan said.
Certification marks are a close cousin of trademarks that a third-party certifier applies to producers to indicate that their goods meet certain standards of origin, quality, or manufacture.
The latest IDEAL Networks LanTEK III cable certifier has received a new, free software update which has been approved by Belden for testing 4K UHD media cabling.