official
adjective
uk/əˈfɪʃəl/ usagreed to or arranged by people in positions of authority:
The trust is expected to receive official permission to sell its shares.
We obtained official documents that were necessary to start the work.
An official inquiry is currently investigating some of the most serious allegations.
used to describe something that has been announced publicly by someone in a position of authority:
So far, there has been no official announcement from the company.
related to your work rather than your personal life:
He was acting in his official capacity.
Even on official business they still find time for a little tourism.
I accompanied the minister on his official visit to Prague.
relating to a position of responsibility:
They chose him as their official representative in the talks with the management.
official
noun [ C ]
uk/əˈfɪʃəl/ usa person who has a position of responsibility in an organization:
a trade union/government official