Official publication refers to written materials released through a government agency or authority, academic or journal articles, or even company policies. Synonyms for official publication include official journal, bulletin, register, report, gazette, brochure, manual, handbook, directory, and prospectus. These terms are often used interchangeably depending on the context in which they are used. For example, government agencies will refer to their updates and information releases as official publications or bulletins. On the other hand, a university or an academic institution would classify their research journals as official publications. Understanding the different synonyms of official publication provides a clearer understanding of the material's origin and intended audience.