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