Official
Part of speech: adjective
Definition: Of or pertaining to an office or public trust Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority Approved by authority; authorized. sanctioned by the pharmacopoeia; appointed to be used in medicine; officinal Discharging an office or function. Relating to an office; especially, to a subordinate executive officer or attendant. Relating to an ecclesiastical judge appointed by a bishop, chapter, archdeacon, etc., with charge of the spiritual jurisdiction.
Part of speech: noun
Definition: An office holder invested with powers and authorities. A person responsible for applying the rules of a game or sport in a competition.
Officially
Part of speech: adverb
Definition: In an official manner