Void may refer to:

Science, engineering, and technology

Void (astronomy) Cosmic voids (also known as dark space) are vast spaces between filaments (the largest-scale structures in the universe), which contain very few or no galaxies. The cosmological evolution of the void regions differs drastically from the evolu ...

, the spaces between galaxy filaments that contain no galaxies *

Void (composites) A void is a pore that remains unfilled with polymer and fibers in a composite material. Voids are typically the result of poor manufacturing of the material and are generally deemed undesirable. Voids can affect the mechanical properties and lif ...

, a pore that remains unoccupied in a composite material * Void, synonym for

vacuum A vacuum is a space devoid of matter. The word is derived from the Latin adjective ''vacuus'' for "vacant" or " void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. Physicists often ...

, a space containing no matter * Void, a bubble within a mechanical part that causes

cavitation Cavitation is a phenomenon in which the static pressure of a liquid reduces to below the liquid's vapour pressure, leading to the formation of small vapor-filled cavities in the liquid. When subjected to higher pressure, these cavities, ca ...

when it collapses * Void, an unwanted air pocket formed during

injection moulding Injection moulding (U.S. spelling: injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for ...

* VoID or Vocabulary of Interlinked Datasets, an RDF vocabulary to enable the discovery and use of linked data sets * Void coefficient, the change in the reactivity of a nuclear reactor when voids form in moderator or coolant fluids *

Void Linux Void Linux is an independent Linux distribution that uses the X Binary Package System (XBPS) package manager, which was designed and implemented from scratch, and the runit init system. Excluding binary kernel blobs, a base install is composed e ...

, a Linux distribution *

Void ratio The void ratio of a mixture is the ratio of the volume of voids to volume of solids. It is a dimensionless quantity in materials science, and is closely related to porosity as follows: :e = \frac = \frac = \frac and :\phi = \frac = \frac = \fr ...

, the volume of void-space to solid space in a material * Void safety, in object-oriented programming, a guarantee that no object references will have null values *

Void type The void type, in several programming languages derived from C and Algol68, is the return type of a function that returns normally, but does not provide a result value to its caller. Usually such functions are called for their side effects, ...

, in programming languages, a keyword indicating the absence of data *

Void set In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set, while in other t ...

or empty set, the mathematical set with no elements

Arts, entertainment, and media

Characters

* Void, a malevolent alter ego of superhero

Sentry (Robert Reynolds) Sentry (Robert "Bob" Reynolds) is a fictional character and superhero appearing in American comic books published by Marvel Comics. The character first appears in ''The Sentry'' #1 (September 2000), and was created by Paul Jenkins and Jae Lee w ...

* Void (comics), one of the original team of the Wildcats * Void, the main antagonist in the 2000 video game '' Sonic Shuffle'' * Voids, the villains in the Zbots action-figures franchise * Void Termina, Void Soul, and Void, the main villain(s) in '' Kirby Star Allies'' * Void, a member of the God Hand and one of the main villains in '' Berserk''

Films

* ''Void'' (film), a 2013 Lebanese film

Literature

* ''

A Void ''A Void'', translated from the original French ( "The Disappearance"), is a 300-page French lipogrammatic novel, written in 1969 by Georges Perec, entirely without using the letter '' e'', following Oulipo constraints. Translations It was tr ...

'', a 1969 French novel written without using the letter ''e'' by Georges Perec * ''

Void Trilogy The ''Void Trilogy'' is a space opera series by British author Peter F. Hamilton. The series is set in the same universe as The '' Commonwealth Saga'', 1,200 years after the end of '' Judas Unchained''. Peter F. Hamilton sold the American rights ...

'', a science-fiction series by Peter F. Hamilton

Music

Void (band) Void was an American hardcore punk band formed in Columbia, Maryland, in 1980. The group was a pioneering force in the thriving D.C. Hardcore scene in Washington D.C. during the early 1980s, successfully combining elements of punk with heav ...

, a Washington, D.C.-based hardcore punk band * ''Void'' (Intronaut album), 2006 * ''VOID'' (NaNa album), a 1999 album by Japanese pop/rock musical duo NaNa * ''Void'' (Vanna album), 2014 * ''

VOID (Video Overview in Deceleration) ''VOID (Video Overview in Deceleration)'' is a 5.1 surround sound DVD by The Flaming Lips released on August 23, 2005. It contains new commentary by the band and nineteen music videos made by the band throughout their musical career. Track listi ...

'', a 2005 DVD by the Flaming Lips * ''

ØØ Void ''ØØ Void'' (pronounced in interviews as "double-O void") is the first studio album by Sunn O))). The album was recorded on 24 track 2" tape at Grandmaster Studios in Hollywood, a large step forward in production values from the band's demo r ...

'', a 2000 album by Sunn O))) * ''Voids'' (album), a 2017 album by Minus the Bear * ''Void'' (EP), an EP by Destroy the Runner

Other arts, entertainment, and media

Void (cards) In card games, to be void in a suit of card Card or The Card may refer to: * Various types of plastic cards: **By type ***Magnetic stripe card ***Chip card *** Digital card **By function ***Payment card ****Credit card ****Debit card ****EC-card ...

, to have no cards of a particular suit in one's hand during a card game * ''Void'' (fanzine), a major science-fiction fanzine started in the 1950s * ''

Void Indigo ''Void Indigo'' was a short-lived and controversial comic book series written by Steve Gerber and drawn by Val Mayerik. It was published by Epic Comics from 1983 to 1984. ''Void Indigo'' focuses on an alien named Jhagur (he is known on Earth as " ...

'', a comic book series written by Steve Gerber and drawn by Val Mayerik

Religion and philosophy

The Void (philosophy) The Void is the philosophical concept of nothingness manifested. The notion of the Void is relevant to several realms of metaphysics. The Void is also prevalent in numerous facets of psychology, notably logotherapy. The manifestation of nothingnes ...

Void (classical element) According to ancient and History of science in the Middle Ages, medieval science, aether (, alternative spellings include ''æther'', ''aither'', and ''ether''), also known as the fifth element or quintessence, is the material that fills the regio ...

, English for ''Kū'', one of the five elements in Japanese Buddhism * ''

Śūnyatā ''Śūnyatā'' ( sa, शून्यता, śūnyatā; pi, suññatā) pronounced in English as (shoon-ya-ta), translated most often as ''emptiness'', ''vacuity'', and sometimes ''voidness'', is a Buddhist concept which has multiple meani ...

'', a Buddhist philosophical concept translated most often as emptiness and sometimes voidness

Other uses

Void (law) In law, void means of no legal effect. An action, document, or transaction which is void is of no legal effect whatsoever: an absolute nullity—the law treats it as if it had never existed or happened. The term void ''ab initio'', which means ...

, an action, document or transaction that has no legal effect * Nothing