certified
Americanadjective
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having or proved by a certificate.
a certified representative.
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guaranteed; reliably endorsed.
a certified check.
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legally declared insane.
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committed to a mental institution.
adjective
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holding or guaranteed by a certificate
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endorsed or guaranteed
a certified cheque
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(of a person) declared legally insane
Other Word Forms
Etymology
Origin of certified
Explanation
If you've met a certain standard or proven that you're qualified for some specific job or task, you're certified. Most schools hire only certified teachers. In order for a person to become certified, there is usually some sort of test or review. A certified accountant has proven that she knows how to prepare tax forms and other financial records by taking classes and an exam. A certified diver has trained to use scuba gear and dive to a certain depth in the ocean, and demonstrated this ability. When you're certified in some way, you often receive a certificate, a document that proves it.
Vocabulary lists containing certified
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
About 4% of the roughly 127,000 veterinarians in the U.S. are certified to perform acupuncture, according to the American Board of Veterinary Acupuncture.
From The Wall Street Journal • May 17, 2026
Though Lapicki works with plenty of certified registered nurse anesthetists—who are able to administer anesthesia—he or another anesthesiologist are always physically on hand, he said.
From The Wall Street Journal • May 16, 2026
Now he's taken that alphabet and turned it into a certified Eurovision banger.
From BBC • May 15, 2026
She is a Menopause Society certified practitioner, the author of “Grown Woman Talk: Your Guide to Getting and Staying Healthy,” and the host of the podcast, The Second Opinion with Dr. Sharon.
From MarketWatch • May 12, 2026
This girl, my BFF, is a certified genius.
From "The Miscalculations of Lightning Girl" by Stacy McAnulty
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
