official

1. (noun) An office holder invested with powers and authorities. 2. (noun) A person responsible for applying the rules of a game or sport in a competition. 3. (adjective) Of or pertaining to an office or public trust. 4. (adjective) Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority 5. (adjective) Approved by authority; authorized. 6. (adjective) (pharmaceutical) Sanctioned by the pharmacopoeia; appointed to be used in medicine; officinal. 7. (adjective) Discharging an office or function. 8. (adjective) Relating to an office; especially, to a subordinate executive officer or attendant. 9. (adjective) Relating to an ecclesiastical judge appointed by a bishop, chapter, archdeacon, etc., with charge of the spiritual jurisdiction. 10. (adjective) True, real, beyond doubt. 11. (adjective) Listen in a national pharmacopeia.