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certified (EN)
adjective

adjective “certified”

base form certified, non-gradable
  1. officially recognized as having met certain standards (as opposed to not having a certification)
    She is a certified teacher with many years of experience.
  2. (law) verified or authenticated as being true or accurate
    The company provided certified copies of their financial statements to the auditors.
  3. (informal) officially declared to be mentally ill
    After several incidents, he was certified and taken to a psychiatric hospital.