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Order, ORDER or Orders may refer to:

  • Orderliness, a desire for organization
  • Categorization, the process in which ideas and objects are recognized, differentiated, and understood
  • Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of different ways
  • Hierarchy, an arrangement of items that are represented as being "above", "below", or "at the same level as" one another
  • an action or inaction that must be obeyed, mandated by someone in authority


Arts, entertainment, and media[edit]

  • Order (album), a 2009 album by Maroon
  • "Order", a 2016 song from Brand New Maid by Band-Maid
  • Orders (1974 film), a 1974 film by Michel Brault
  • Orders, a 2010 film by Brian Christopher
  • Orders, a 2017 film by Eric Marsh and Andrew Stasiulis



Law and society[edit]




Science and technology[edit]

Biology and healthcare[edit]

  • Order (biology), a classification of organisms by rank
    • Order, in phytosociology, an ecological grouping of plants, between alliance and class
    • Ordo naturalis (natural order), an outdated rank in biology, equivalent to the modern rank of family
  • Order, in medicine, refers to a formal request made by authorized health practitioners to carry out a specific clinical action concerning diagnosis or treatment




Signal processing[edit]

Other uses in science and technology[edit]

See also[edit]