official

Of or relating to an office or a post of authority.

Authorized by a proper authority; authoritative.

Holding office or serving in a public capacity.

Characteristic of or befitting a person of authority; formal.

Authorized by or contained in the US Pharmacopoeia or National Formulary. Used of drugs.

One who holds an office or position, especially one who acts in a subordinate capacity for an institution such as a corporation or governmental agency.

A referee or umpire.

In pharm., authorized by the pharmacopœia of some country or countries: as, an official drug; an official preparation. In this sense recent, displacing the broader term officinal.

Of or pertaining to office or the performance of the duties of an office: as, official duty; official cares or responsibility.

Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority; hence, authorized: as, an official statement or report.