title: Alternation
text: # Alternation
  
  Alternation or AlterNation may refer to:
  
  * Alternation (complexity), a resource in computational complexity theory
  * Alternation (formal language theory), the set union of two sets of strings in formal language theory and pattern matching
  * Alternation (geometry), a geometric operation for deriving polytopes from other polytopes
  * Alternation (linguistics), a variation in the phonological form of a morpheme
  * Diathesis alternation, a linguistics term relating to verb use
  * R/N alternation; see Rhotacism (sound change)
  * Logical disjunction, the or function
  * AlterNation, a show on NE1 FM
  * WSTB, a radio station in Streetsboro, Ohio known as The AlterNation
  