发布 (fā bù) is a transitive verb meaning 'to issue,' 'to release,' or 'to publish'—typically referring to official, formal, or public dissemination of information such as news, announcements, policies, reports, or digital content. The first character 发 (fā) carries meanings related to 'sending out,' 'initiating,' or 'emanating,' while 布 (bù) originally meant 'to spread' or 'to distribute' (as in spreading cloth), and together they evoke the idea of making something widely known by actively disseminating it.

This word is commonly used in professional, governmental, media, and digital contexts—for example, when a company releases a new product announcement, a government issues a policy update, or a social media user shares an official statement. It implies intentionality, authority, and broad reach; it is not used for casual or private sharing (e.g., telling a friend something). While often associated with written or digital formats, it can also apply to spoken statements made publicly and formally.