Category

Category, plural categories, may refer to:

Philosophy and Cognitive Science

 * Category of being
 * Categories (Aristotle)
 * Category (Kant)
 * Categories (Peirce)
 * Category (Vaisheshika)
 * Stoic Categories
 * For categories in cognitive science, see categorization

Mathematics

 * Category theory
 * Category (mathematics)
 * Abelian category
 * Category of abelian groups
 * Category of small categories
 * Category of sets
 * Category (topology) in the context of Baire spaces
 * Lyusternik–Schnirelmann category, sometimes called LS-category or simply category
 * Monoidal category
 * Preadditive category
 * Equivalence of categories

Games

 * Category (chess tournament)

Computer programming

 * Categories, a programming concept in Objective-C

Network cabling

 * Networking Cable: CAT (1), 2, 3, 4, 5, 5e, 6, 6a)

Other

 * Pregnancy category
 * Prison security categories in the United Kingdom
 * List of boxing weight classes
 * List of software categories
 * Saffir–Simpson Hurricane Scale - common categorization of hurricane intensities
 * Lexical category
 * Categories of New Testament manuscripts
 * Nolij Help category