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Cover or covers may refer to:

Science and technology[edit]

Deception and concealment[edit]


  • Cover (topology), the mathematical concept of a collection of subsets of a set whose union is the whole set
  • Cover (algebra), the concept of an algebraic structure that maps onto another structure in structure-preserving fashion
  • A pair in the covering relation of a partially ordered set, or the greater element in such a pair
  • A covering space, in the theory of Riemann surfaces and topology
  • A (universal / double), covering group, a covering space with group structure, common in theoretical physics
  • Cover, an equivalent set of constraints in database theory

Television, film, and music[edit]

  • Cover version, a new version of a previously recorded song, also called simply a "cover"
  • Cover band, a musical band that performs mostly cover versions
  • Cover, an understudy in opera
  • Cover (film), a 2007 film directed by Bill Duke




  • Cover charge, an entry fee
  • Cover (law), a remedy for the breach of a contract for the receipt of goods
  • Cover (finance), repurchasing a short order made on the stock/equity, forex or futures markets

Military dress[edit]

Other uses[edit]

  • Mating of animals, e.g. a stallion covers a mare
  • A cover is the seating capacity for one person in a restaurant



See also[edit]