- Places
- People with the name
- Arts, entertainment, and media Fictional entities Games Music Groups and labels Albums Other uses in music Periodicals Other uses in arts, entertainment, and media
- Business and economics
- Computing, technology, and engineering Computing Programming languages
- Linguistics
- Mathematics and science Measurements Astronomy and Earth science Mathematics Biology, chemistry, and medicine Physics Solid state physics
- Time
- Transportation
- Other uses
- See also
D is the fourth letter of the Latin alphabet.
D or d may also refer to:
{{TOC right}}Places
- D River, in Oregon, US
- Detroit, US (nickname "D")
- Deutschland (German's international license plate code D)
People with the name
- D, the bass player for Australian band Testeagles
- "D!" or "Dee!", names of Detlef Soost, a German dancer and choreographer
Arts, entertainment, and media
Fictional entities
- D, a character in a series of novels titled Vampire Hunter D by Hideyuki Kikuchi
- D, a nickname given to Count Dracula in the novel Dracula written by Bram Stoker
- D, one of the characters in Two Memories (Trace Memory)
- Count D, a character in the anime/manga series Pet Shop of Horrors
- Substance D, a fictional recreational drug in the novel and film A Scanner Darkly
Games
- D (series), a video game series
- D (video game), a game released in 1995 for the PC, 3DO, PlayStation and Sega Saturn
Music
Groups and labels
- D (band), a Japanese rock/metal band
- D Records, a former record label in Houston, Texas, US
- "d:" or "d:?", often used to refer to the Christian rock band Delirious?
- "The D", one of the names of comedy rock band Tenacious D
Albums
- D (Deuter album), 1971
- D (Os Paralamas do Sucesso album), 1987
- D (White Denim album), 2011
- D, followed by a number, a composition by Franz Schubert according to the Schubert Thematic Catalogue
- Substance D, a drum and bass compilation album by Dieselboy
Other uses in music
- D (musical note)
- D major, a scale
- D major chord; See Chord names and symbols
- D minor, a scale
- Steinway D-274 or D, a concert grand piano manufactured by Steinway & Sons
Periodicals
- D, a weekly supplement to the Italian newspaper la Repubblica
- D Magazine, a magazine for the city of Dallas, Texas, US
Other uses in arts, entertainment, and media
- D (film), a 2005 Bollywood film
- Initial D, a 1995 Japanese manga and anime about mountain drifting that has spawned several arcade and console games
- D, the production code for the 1964 Doctor Who serial Marco Polo
- "D" Is for Deadbeat, the fourth novel in Sue Grafton's "Alphabet mystery" series, published in 1987
Business and economics
- Demand (D), in economics
- Dominion Resources (New York Stock Exchange ticker symbol D)
- Federal Reserve Bank of Cleveland (serial numbers of United States dollars, beginning with D)
- Penny (British pre-decimal coin) (d)
Computing, technology, and engineering
- D, Mitsubishi Electric's mobile phones in Japan
- D battery, a standard size dry cell battery in electronics
- d{{'}}, sensitivity index, a statistic used in signal detection theory
Computing
- .d, a file format used for Agilent MassHunter mass spectrometry software
- .d, a pathname component suffix for a directory; for example with the init program
- -d, a suffix of a daemon, a computer program that runs as a background process
- D - Minimal Protection, a security division in the Trusted Computer System Evaluation Criteria
Programming languages
- D (data language specification), the basis for the database query language Tutorial D and others
- D (programming language), a C++-like programming language developed by Walter Bright
- D, a programming language designed to be used with the DTrace dynamic tracing framework
Linguistics
- ’d, a contraction of the English words had and would
- Dingir (D), the Sumerian sign for deity
- Voiced alveolar stop consonant ([d] or /d/), in the International Phonetic Alphabet
Mathematics and science
Measurements
- Deci- (d), the SI prefix meaning one tenth
Astronomy and Earth science
- D, a February 16 through 29 discovery in the provisional designation of a comet or asteroid
- D, for "Degenerate", a white dwarf in stellar classification
- D/, for "destroyed/disappeared" in comet nomenclature
- D region, part of the ionosphere
Mathematics
- D, Roman numerals for 500
- D, Thirteen, or D in hexadecimal and other positional numeral systems with a radix of 14 or greater
- D and d, the derivative operators
- d, the symbol for the total differential operator; in a related but more general meaning, it is the exterior derivative operator in differential geometry
- d, often a variable for the diameter of a circle in geometry
- d(n), Divisor function, the number of positive divisors of an integer n
- Blackboard bold
, the unit disk in the complex plane, or the decimal fractions; See Number
Biology, chemistry, and medicine
- D, Aspartic acid, in biochemistry
- D, Diarrhea
- D, Deuterium, an isotope of hydrogen
- d, Deuteron, the nucleus of deuterium
- D- prefix, a dextrorotatory compound
- ATC code D Dermatologicals, a section of the Anatomical Therapeutic Chemical Classification System
- Haplogroup D (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- Haplogroup D-M174, a Y-chromosomal DNA (Y-DNA) haplogroup
- Vitamin D
Physics
- D, Debye (D), a unit of electrical dipole moment
- D, Dioptre (D), a unit of measurement of the optical power of a lens or curved mirror (also in Medicine)
- D, Diffusion coefficient (D), in molecular physics
- D, Electric displacement field (D)
- D, the name of mesons containing charm quarks in particle physics
- d, thickness, diameter, relative density, lattice plane spacing, and degeneracy of vibrational mode, in molecular spectroscopy
- D band (disambiguation)
Solid state physics
- D(E), a function of energy
- Debye–Waller factor (D)
- Diode (D), an electronic component
- Wavenumber [D(k)], a symbol for the density of states
Time
- Day (d), in metrology
- December (D), in calendars
- Dominical letter D, for a common year starting on Thursday
Transportation
- D (Los Angeles Railway), a line operated by the Los Angeles Railway, US
- D (New York City Subway service), US
- Drive, or D, the forward cruising gears in an automatic transmission
- Tesla Model D, a concept all-wheel drive electric sedan
Other uses
- D (grade), a below average grade in education
- D, a brassiere cup size
- d, the number of sides of dice in role-playing games
- d, the common US measurement of the penny size (an approximation of length), of a nail
- 500 (number), D in Roman numerals
- D-Company, a criminal group
- Daughter (d)
- Defense (sports) (D)
- Democrat (D), a member of the US Democratic Party
- Denarius, a Roman coin
- Died (d.)
- Dominant person (D/), in dominance and submission
- Delta, the military time zone code for UTC+04:00
See also
- D♯ (disambiguation)
- D- All Things Digital, an annual technology conference
- Dee (disambiguation)
- Filetab-D, a port of the Filetab language based on decision tables
- High Treason (The Adventures of Brisco County, Jr.)
- High treasurers of England
- High Upon This Love
- High vaginal swab
- High Vaginal Swab
- Highvale, Alberta
- Highvale, Queensland
- High valley
- High value detainee program
- High Value engine
- High value resistor
- High value resistors (electronics)
- High Valyrian
- Highveld East Local Municipality
- Highveld Gerbil
- Highveld Golden Mole
- High Velocity
- High Velocity Armor Piercing
- High-Velocity Cloud
- High-velocity cloud
- High-Velocity Clouds
- High-velocity clouds
- High Velocity - Mountain Racing Challenge
- High Victorian Gothic
- Highview Fire Protection District