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Void may refer to:

In science and engineering[edit]

  • Void (astronomy), the empty spaces between galaxy filaments
  • Lack of matter, or vacuum
  • Void, in boiling heat transfer, formed where there is a departure from nucleate boiling, causing a critical heat flux
  • Void, in mechanical engineering, is a bubble or pocket of vapor which forms near a propeller or pump, causing cavitation
  • Void, in casting or injection molding, describes a defect where there are empty spaces (air pockets) in a completed part
  • Void coefficient, in nuclear engineering, is a measure of how spaces devoid of either moderator or coolant affect the reactivity of a nuclear reactor
  • Void ratio, of voids to solids in a mixture, in material sciences
  • Void safety, an issue raised in programming by a reference that is not attached to an object, also known as null reference
  • Void type, keyword indicating the absence of type information in many programming languages
  • VoiD (Vocabulary of Interlinked Dataset), the vocabulary to describe linked open datasets in order for users to discover, interlink and evaluate the quality of these datasets on the Web
  • Vacancy defect, in crystallography, is a type of point defect in a crystal in from which an atom is missing from one of the lattice sites, making a void

In fiction[edit]

In music[edit]

In art[edit]

In law[edit]

Other uses[edit]

  • Void, in Accounting, of a transaction, canceled or reversed as if it never happened
  • Void (cards), to have no cards of a particular suit in one's hand during a card game
  • Void, a verb used in a medical context to denote excretion
  • Void, in housing, accommodation without occupancy agreement, without income
  • Void, in Ultimate frisbee, the name of the University of Pennsylvania men's ultimate frisbee team
  • Void, or Shunyata, Buddhist philosophical concept
  • Kū, one of the Five elements (Japanese philosophy), is sometimes translated "void" in English
  • Nothing, is the absence of everything or a void.

See also[edit]