official adjective - definition in the Learner's Dictionary - Cambridge Dictionaries Online

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English definition of “official”

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official

adjective
 
 
/əˈfɪʃəl/
APPROVED B2 approved by the government or someone in authority: the official language of Singapore an official document Announcing, informing and stating
JOB [always before noun] relating to the duties of someone in a position of authority: the official residence of the ambassador an official visit Position and status in groups and organizations
KNOWN known by the public: It's official - they're getting married!Adapting and attuning to somethingAdapting and modifying Changing
NOT TRUE [always before noun] An official explanation or statement is one that is given, but which may not be true: The official reason for the delay is bad weather. →  Opposite unofficial True, real, false, and unreal
officially adverb The new hospital was officially opened yesterday.
(Definition of official adjective from the Cambridge Learners Dictionary © Cambridge University Press)
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