Di or DI may refer to:

Arts and media

Music

* Di, a tone in the

solfège In music, solfège (British English or American English , ) or solfeggio (; ), also called sol-fa, solfa, solfeo, among many names, is a mnemonic used in teaching aural skills, Pitch (music), pitch and sight-reading of Western classical music, W ...

ascending chromatic scale existing between Do and Re *

dizi (instrument) The ''dizi'' (, pronounced ), is a Chinese transverse flute. It is also sometimes known as the ''di'' () or ''héngdi'' (), and has varieties including Qudi (), Bangdi (), and Xindi (). It is a major Chinese musical instrument that is widel ...

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 The Desert Inn, also known as the D.I., was a hotel and casino on the Las Vegas Strip in Paradise, Nevada, which operated from April 24, 1950, to August 28, 2000. Designed by architect Hugh Taylor and interior design by Jac Lessman, it was the ...

, a former casino in Las Vegas *

Direction Italy Direction Italy (, DI) was a liberal conservatism, liberal-conservative list of political parties in Italy, political party in Italy. The party was led by Raffaele Fitto, an Member of the European Parliament, MEP in the European Conservatives and ...

, a liberal-conservative political party in Italy * Dirgantara Indonesia, an Indonesian aircraft company *

Discovery Institute The Discovery Institute (DI) is a conservatism in the United States, politically conservative think tank that advocates the pseudoscience, pseudoscientific concept Article available froUniversiteit Gent of intelligent design (ID). It was fou ...

, 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 Direct instruction (DI) is the explicit teaching of a skill set using lectures or demonstrations of the material to students. A particular subset, denoted by capitalization as Direct Instruction, refers to the approach developed by Siegfried E ...

, 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 Diabetes insipidus (DI) is a condition characterized by large amounts of dilute urine and increased thirst. The amount of urine produced can be nearly 20 liters per day. Reduction of fluid has little effect on the concentration of the urine. ...

'', 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) The Di (; < Eastern Han Chinese *''tei'' < Old Chinese (Reconstructions of Old Chinese#Baxter–Sagart (2014), B-S): *''tˤij'') were an ancient ethnic group that lived in western China, and are best known as one of the non-Han Chinese peoples kno ...

(), an ethnic group that overran northern China during the Sixteen Kingdoms period * Beidi or Northern Di (), 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) Diana is a feminine given name of Latin language, Latin and Greek origins, referring to the Roman goddess Diana (mythology), Diana, goddess of the hunt and the moon. It came into use in the Anglosphere in the 1600s by classically educated pare ...

** Diane (disambiguation) ** Dianne (disambiguation) *

Diana, Princess of Wales Diana, Princess of Wales (born Diana Frances Spencer; 1 July 1961 – 31 August 1997), was a member of the British royal family. She was the first wife of Charles III (then Prince of Wales) and mother of Princes William, ...

(1961–1997), commonly known as Princess Di or Lady Di

Technology

Digital intermediate Digital intermediate (DI) is a motion picture finishing process which classically involves digitizing a motion picture and manipulating the color and other image characteristics. Definition and overview A digital intermediate often replaces or a ...

, a filmmaking post-production process *

Dependency injection In software engineering, dependency injection is a programming technique in which an object or function receives other objects or functions that it requires, as opposed to creating them internally. Dependency injection aims to separate the con ...

, 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 Heading can refer to: * Heading (metalworking), a process which incorporates the extruding and upsetting processes * Heading (navigation), the direction a person or vehicle is facing, usually similar to its course ** Aircraft heading, the dire ...

* Direct ignition, see Distributor § Direct ignition * Direct injection, a type of

fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of a fuel injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All c ...

Religion

* ''di'' (), a Chinese word employed in ** the temple names of deified Chinese emperors ** ''

Shangdi Shangdi (), also called simply Di (), is the name of the Chinese Highest Deity or "Lord Above" in the Chinese theology, theology of the classical texts, especially deriving from Shang dynasty, Shang theology and finding an equivalent in the lat ...

'' (Chinese: , lit. "Lord on High"), the Chinese name for the supreme sky god either in native Chinese beliefs or in translation of monotheistic faiths like Christianity and Islam * ''di'' (Chinese concept) (), the concept of "earth" in traditional Chinese cosmologies * ''di'', an irregular Latin masculine plural of ''

deus ''Deus'' (, ) is the Latin word for 'God (word), god' or 'deity'. Latin ''deus'' and ''dīvus'' ('divine') are in turn descended from Proto-Indo-European language, Proto-Indo-European *''deiwos'', 'celestial' or 'shining', from the same root ( ...

'' ("god", "deity")

Other uses

Detective inspector Inspector, also police inspector or inspector of police, is a police rank. The rank or position varies in seniority depending on the organization that uses it. Australia The rank of Inspector is present in all Australian police forces excep ...

(DI), a rank in certain police forces * Di (cuneiform), an ancient written sign *

Diameter In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest Chord (geometry), chord of the circle. Both definitions a ...

, the distance across the middle of a circle * Di Department, one of the eight departments of the Sourou Province in Burkina Faso * 501 (number) in Roman numerals *

Disability insurance Disability Insurance, often called DI or disability income insurance, or income protection, is a form of insurance that insures the beneficiary's earned income against the risk that a disability creates a barrier for completion of core work func ...

, a form of insurance that insures the beneficiary's earned income against the risk that a disability will make working uncomfortable * Hong Kong Document of Identity, issued by the Hong Kong Immigration Department *

Drill instructor A drill instructor is a non-commissioned officer in the armed forces, fire department, or police forces with specific duties that vary by country. Foot drill, military step, and marching are typically taught by drill instructors. Australia Aust ...

, a non-commissioned officer in many military or police forces * Differentiated integration, a mechanism for the European Union's countries to opt out of EU policies