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Synonyms

certified

American  
[sur-tuh-fahyd] / ˈsɜr təˌfaɪd /

adjective

  1. having or proved by a certificate.

    a certified representative.

  2. guaranteed; reliably endorsed.

    a certified check.

  3. legally declared insane.

  4. committed to a mental institution.

certified British  
/ ˈsɜːtɪˌfaɪd /

adjective

  1. holding or guaranteed by a certificate

  2. endorsed or guaranteed

    a certified cheque

  3. (of a person) declared legally insane

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • noncertified adjective
  • uncertified adjective
  • well-certified adjective

Etymology

Origin of certified

First recorded in 1605–15; certify + -ed 2

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.

This is my second year using a tax-preparation firm led by a certified public accountant.

From MarketWatch • Apr. 1, 2026

Non-credentialed preparers make far more errors than certified public accountants and enrolled agents, who must meet rigorous requirements to receive their designations.

From Barron's • Mar. 28, 2026

And you also get a strong no-logging/privacy policy, which is certified by regular third-party audits.

From Salon • Mar. 27, 2026

It said it operated an age check process certified by independent experts so children were limited, by default, to chatting with users who were of a similar age.

From BBC • Mar. 25, 2026

"That's all. Come back next week to be tested and certified."

From "Son" by Lois Lowry

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.