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English definition of “official”

official

adjective uk   /əˈfɪʃ.əl/ us  
C2 relating to a position of responsibility: He visited China in his official capacity as America's trade representative. Number Ten Downing Street is the British prime minister's official residence.
Opposite
B2 agreed to or arranged by people in positions of authority: The official photos of the prime minister's tour of India are in the magazine. The Queen will attend the official opening of the theatre in June. There is to be an official inquiry into the incident. C2 If a piece of information is official, it has been announced publicly with authority: Their engagement is now official. Inflation has fallen below two percent, and that's official.

official

noun [C] uk   /əˈfɪʃ.əl/ us  
C2 a person who has a position of responsibility in an organization: a government/trade-union/council official
(Definition of official from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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