{{wiktionary|3-D|3D|3d}} '''3D''', '''3-D''', '''3d''', or '''Three D''' may refer to:
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==Science, technology, and mathematics== * A three-dimensional space in mathematics ===Relating to three-dimensionality=== * 3D computer graphics, computer graphics that use a three-dimensional representation of geometric data * 3D display, a type of information display that conveys depth to the viewer * 3D film, a motion picture that gives the illusion of three-dimensional perception * 3D modeling, developing a representation of any three-dimensional surface or object * 3D printing, making a three-dimensional solid object of a shape from a digital model * 3D television, television that conveys depth perception to the viewer * 3D projection * 3D rendering * 3D scanning, making a digital representation of three-dimensional objects * 3D video game * Stereoscopy, any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image * Three-dimensional space
===Other uses in science and technology===
* 3-D Secure, a secure protocol for online credit and debit card transactions * Biela's Comet, a lost periodic comet discovered in 1826, also known as 3D * British Rail Class 207, sometimes known as 3Ds
==Music== ===Artists=== * Robert Del Naja (born 1965), also known as 3D, English artist and musician in the band Massive Attack * The 3Ds, a rock band
===Albums=== * ''3D'' (Go West album), 2010 * ''3-D'' (I See Stars album), the debut album from the band I See Stars * ''3-D'' (SPC ECO album) * ''3D'' (The Three Degrees album), 1979 * ''3-D'' (TLC album), 2002 * ''3-D'' (Wrathchild America album) * "Weird Al" Yankovic in 3-D, 1984, sometimes simply referred to as 3-D
===Songs=== *"3D" (song), a 2023 song by Jungkook featuring Jack Harlow *"3-D", a song by Cheap Trick from their 1983 album ''Next Position Please''
==Other uses== * 3D Aerobatics, a form of flying using flying aircraft to perform specific aerial maneuvers * 3D (Long Island bus), bus service in New York State * 3D Test of Antisemitism, put forth by Israeli politician and human rights activist Natan Sharansky * Middle finger, the third digit (abbreviated 3D) of the hand * Three D Radio, a community radio station in Adelaide, Australia * Three Ds of foreign policy, in United States foreign policy * Three-dimensional chess * Threepence (disambiguation), a coin used in several countries, abbreviated as '3d' * The 3D ("Dudley Death Drop"), a professional wrestling double-team maneuver
==See also== * 3ds (disambiguation) * 3rd (disambiguation) * D3 (disambiguation) * DDD (disambiguation) * BBC HD (Used 3D approx 7 times before) * {{Look from}}
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