Di
Di or DI may refer to: == Arts and media == === Music === Di, a tone in the solfège ascending chromatic scale existing between Do and Re dizi (instrument) or di, a Chinese transverse flute D.I. (band), a punk band from Southern California D.I. (EP), a 1983 EP by the same band above === Other media === The D.I., 1957 military film by Jack Webb Dagens Industri, a Swedish financial newspaper DI.FM, an internet radio service == Businesses and organisations == Defence Intelligence, a UK military intelligence agency Defensa Interior, an anti-Franco militant anarchist group in 1960s Spain Deseret Industries, an LDS thrift store Desert Inn, a former casino in Las Vegas Direction Italy, a liberal-conservative political party in Italy Dirgantara Indonesia, an Indonesian aircraft company Discovery Institute, an intelligent design advocacy group Marabu (airline) (IATA code: DI), an Estonian leisure airline Norwegian Air UK (former IATA code: DI), a former UK airline DBA (airline) (former IATA code: DI), a former German low-cost airline DynCorp International, a major United States defense contractor Myanmar Directorate of Defence Industries == Education == Diplomi-insinööri, a Finnish 6-year engineering degree Direct instruction, an instructional method focused on a systematic curriculum design == Natural sciences == Di, a prefix used in organic chemistry nomenclature Didymium, a mixture of the elements praseodymium and neodymium once thought to be an element Diopside, a clinopyroxene mineral Band 3, a protein Deionized water, a type of water deprived of the dissolved impurities of ionic nature Diabetes insipidus, a disease Iodothyronine deiodinase type I, one of a subfamily of enzymes important in the activation and deactivation of thyroid hormones Dentinogenesis imperfecta, a genetic disorder of tooth development == People == === Ethnic groups === Di (Five Barbarians) (氐), an ethnic group that overran northern China during the Sixteen Kingdoms period Beidi or Northern Di (狄), ethnic groups living in northern China during the Zhou Dynasty === Individuals === Di (surname) (狄), a Chinese surname sometimes also romanized Dee, particularly: Di Renjie a Tang-dynasty official later fictionalized in a series of Chinese detective stories A diminutive form of the names: Diana (given name) Diane (disambiguation) Dianne (disambiguation) Diana, Princess of Wales (1961–1997), commonly known as Princess Di or Lady Di == Technology == Digital intermediate, a filmmaking post-production process Dependency injection, a method of decoupling components in software DI unit or Direct Input box, an audio device used with PA systems and in sound recording studios DI register, or destination index, in x86 computer architecture Direction indicator, an instrument in aviation also known as a heading indicator Direct ignition, see Distributor § Direct ignition Direct injection, a type of fuel injection == Religion == di (帝), a Chinese word employed in the temple names of deified Chinese emperors Shangdi (Chinese: 上帝, lit.