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.
"The Blockade will remain in full force and effect until an agreement is reached, certified and signed," he added.
From Barron's • May 24, 2026
Diversification becomes more important as you accumulate a larger portfolio, says Mark La Spisa, a certified financial planner based in Barrington, Ill.
From MarketWatch • May 22, 2026
They had the letter certified and attached their rent checks for the next month.
From Los Angeles Times • May 21, 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
If you could ignore the telltale signs that he is a certified creep.
From "The Poisonwood Bible" by Barbara Kingsolver
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.
