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.
But he cautions that residency rules can be complex — making it important to consult a qualified tax professional, such as a certified public accountant, before making any major moves.
From MarketWatch ● Aug. 8, 2026
Under the law, each state can create its own guiding principles on how to oversee its coast, and federal officials must honor this state coastal management plan once it’s certified.
From Los Angeles Times ● Aug. 7, 2026
Viewers should use certified eclipse glasses or another approved solar viewing device.
From Science Daily ● Aug. 5, 2026
The document says the agency certified it on June 22.
From Salon ● Aug. 4, 2026
“I’m guessing she’s not a certified foster care provider.”
From "Orphan Train" by Christina Baker Kline
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.
