Authorized
Part of speech: verb
Definition: To grant (someone) the permission or power necessary to do (something).
Example sentence: I was authorized to do everything that I did.
Official
Part of speech: adjective
Definition: Of or pertaining to an office or public trustDerived from the proper office or officer, or from the proper authority; made or communicated by virtue of authorityApproved by authority; authorized.sanctioned by the pharmacopoeia; appointed to be used in medicine; officinalDischarging 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.
Example sentence: I used to get very, very frustrated by people being told what to do by nanny in Brussels. And I remember once I rang the official who was actually responsible for banning the prawn-cocktail-flavoured crisp, which I think contained a dye called Arithrazine or something like that.