English definition of “official”
APPROVED › approved by the government or someone in authority: the official language of Singapore an official document
JOB [always before noun] › relating to the duties of someone in a position of authority: the official residence of the ambassador an official visit
KNOWN › known by the public: It's official - they're getting married!
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 officially adverb › The new hospital was officially opened yesterday.