BI

Bi or bi may refer to:

• Bi (jade), a type of jade disc produced in ancient China
• "Bi" (song), a 1993 song by Living Colour
• Bi (album), a 2008 album by Astyplaz
• Bi-, a number prefix denoting two
• Billon (alloy), an alloy of less than 50% silver
• Bisexuality, a sexual orientation
• Bipolar (disambiguation), a term used in several sciences and technologies
• 비 or Rain, South Korean entertainer
• Ы or yery, a Cyrillic letter

Code or symbol

• "bi", the ISO 639 alpha-2 language code for the Bislama language
• "Bi", the chemical symbol for bismuth
• "Bi", the Biot number, a dimensionless number in physics
• .bi, the Internet top-level domain for Burundi
• "bi", the World Meteorological Organization and ISO 3166-1 country code for Burundi
• "BI", the IATA airline code for Royal Brunei Airlines

Acronyms

• Bihac, a city in Bosnia and Herzegovina
• Batteries Included, a former computer software and hardware company based in the Toronto area
• Bank Indonesia, the national bank of Indonesia
• Batman Incorporated, an organization in DC comics lead by Bruce Wayne.
• Bayesian inference, in statistics
• Bear Island (disambiguation)
• Bilhete de identidade (disambiguation), the common abbreviation for the names of the national ID cards of Portugal and Mozambique
• BioShock Infinite, a 2012 first-person shooter video game
• Bishop Ireton High School, a Roman Catholic high school in Alexandria, Virginia
• Block Island, in Rhode Island
• Boehringer Ingelheim, a German pharmaceutical company
• Braniff International Airways, a now-defunct large air passenger service
• Breidbart Index, measure of severity of Usenet newsgroup spam
• British Invisibles, a British trade organisation
• Burning Index, A number relating to the potential amount of effort needed to contain a single fire in a particular fuel type within a rating area derived from the NFDRS
• Business informatics, the combined discipline of information technology and management
• Business intelligence, in information technology, the discipline of dealing and analysing business-related information
• Bedriftsøkonomisk Institutt, BI Norwegian Business School
• Rome: Total War: Barbarian Invasion, a 2005 expansion pack in the Rome: Total War computer game