Definition of official adjective from the Oxford Advanced Learner's Dictionary

      

    official

     adjective
    adjective
    BrE BrE//əˈfɪʃl//
     
    ; NAmE NAmE//əˈfɪʃl//
     
     
    jump to other results
  1. 1  [only before noun] connected with the job of somebody who is in a position of authority official responsibilities the Prime Minister’s official residence He attended in his official capacity as mayor. This was her first official engagement. He made an official visit to Tokyo in March.
  2. 2  [usually before noun] agreed to, said, done, etc. by somebody who is in a position of authority an official announcement/decision/statement according to official statistics/figures the official biography of the President An official inquiry has been launched into the cause of the accident. The country's official language is Spanish. I intend to lodge an official complaint (= to complain to somebody in authority). The news is not yet official.
  3. 3  [only before noun] that is told to the public but may not be true I only knew the official version of events. The official story has always been that they are just good friends.
  4. 4  [only before noun] formal and attended by people in authority an official function/reception The official opening is planned for October.
  5. opposite unofficial
    Word Origin Middle English (originally as a noun): via Old French from Latin officialis, from officium ‘performance of a task’ (in medieval Latin also ‘office, divine service’), based on opus ‘work’ + facere ‘do’.Extra examples An official announcement is expected tomorrow. An official enquiry has been launched into the cause of the accident. He stepped into the waiting official car. I intend to make an official complaint. She attended in her official capacity as mayor. That was the official version of events but nobody believed it. The country’s official language is Spanish. The minister was in Berlin on official business. The official line is that the date for the election has not yet been decided. The official news agency reported an attack by rebel soldiers. The report revealed official corruption in relation to road building.
See the Oxford Advanced American Dictionary entry: official