Ubb

UBB is an acronym used for several distinct entities in technology and higher education. The most widely recognized meanings are UBBCode, a lightweight markup language used to format posts on online forums, and the Universidad del Bío-Bío, a public university in Chile.

UBBCode originated with the Ultimate Bulletin Board forum software and uses a simple tag-based syntax to apply formatting such as emphasis, links, and lists without HTML. It is designed to be safe for untrusted input and to be easy to read both in posts and in forum source code. UBBCode has influenced many BBCode variants adopted by a range of forum systems.

Ultimate Bulletin Board refers to a family of commercial forum software products that gained popularity in the late 1990s and early 2000s. The software provided forum administration features, user permissions, and moderation tools, and it commonly included a built-in markup language—UBBCode—that allowed users to format their posts.

Universidad del Bío-Bío (UBB) is a public university in Chile with multiple campuses and a broad range of programs across engineering, sciences, and humanities. The acronym also appears in other contexts, including different organizations and institutions that adopt the same abbreviation based on local language and naming conventions.