1. A person holding an official position or rank, typically in government, military, law enforcement, or a public institution, who has been formally appointed and has legal authority to perform duties
The official officer presented the documents at the conference.
O oficial autorizado apresentou os documentos na conferência.
2. A representative authorized to act on behalf of an organization or government body
An official officer from the embassy assisted with the visa application.
Um agente oficial da embaixada auxiliou com o pedido de visto.