D (disambiguation)
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D is the fourth letter of the Latin alphabet.
D or d can also mean:
- D programming language, an object-oriented, imperative systems programming language, designed as a successor to C++
- D programming language (Sun), the application programming interface language for DTrace
- D programming language (Haskell-like), a Haskell-like language, with type classes[1]
- The Data Language, an MS-DOS 4GL[2]
- Dialog Manager programming language, a mid-level programming language
- Tutorial D, a proposed set of requirements for a truly relational database query language