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Void may refer to:

In science and engineering[edit]

  • Void (astronomy), the empty spaces between galaxy filaments
  • Void (composites), a pore that remains unoccupied in a composite material
  • 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

In fiction[edit]

In music[edit]

In video games[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]