certified
1. [ adjective ] endorsed authoritatively as having met certain requirements
Examples:

"a certified public accountant"

Related terms: uncertified certificated certifiable
2. [ adjective ] having quality or payment or delivery guaranteed
Examples:

"certified milk" "certified check" "certified mail"

Related terms: secure
3. [ adjective ] fit to be certified as insane (and treated accordingly)
Synonyms: certifiable
Related terms: insane
4. [ adjective ] holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill
Synonyms: qualified
Examples:

"a registered pharmacist" "a registered hospital"

Related terms: registered
Similar spelling:   certificated
  certificate
  certifiable
  certify