1. A formal, standardized manner of writing or speaking used in official documents, government communications, or formal institutions
The letter was written in official style with proper formatting and formal language.
A carta foi escrita em estilo oficial com formatação adequada e linguagem formal.
2. The prescribed or conventional style adopted by a government, organization, or institution for official communications
The company adopted an official style guide for all corporate communications.
A empresa adotou um guia de estilo oficial para todas as comunicações corporativas.