certified

1. 1
   meets standardsadjective

   Officially checked and approved as meeting a required standard, often shown by a certificate.

   We hired a certified electrician to fix the wiring.

   The store sells only certified car seats.

   UsageSay certified in first aid, or certified by a group that checks.

   Similaraccredited, licensed, qualified, registered, approved

   Oppositeunlicensed, unqualified

2. 2
   verb

   Past tense and past participle of certify. Use it for something done earlier, or after words like has or was.

   The doctor certified that she was healthy enough to play.

   The new playground was certified safe by the city.

   UsageYou can say someone certified that something is true, or certified it safe.

3. 3
   proven genuineadjective

   Shown in writing to be real or correct.

   The court asked for a certified copy of the birth certificate.

   He needed a certified translation of his diploma to apply for the job.

   UsageUsed for papers, like a certified copy of a birth certificate. A certified person has met a standard instead.

   Similarattested, verified, official

   Note
4. 4
   undeniableadjective

   Used to say someone or something clearly is a certain thing, as if it were official.

   That song came out when I was a kid, and now it's a certified classic.

   My uncle's barbecue ribs are a certified hit at every family party.

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