Look up category in Wiktionary, the free dictionary.

For information about Wikipedia categories, see Wikipedia:Category schemes

See also: Wikipedia:Categorization, for more about Wikipedia categories, and Wikipedia:Browse, to browse the existing categories.

Category refers to: Shortcut: WP:CU Marking articles for cleanup This page is undergoing a transition to an easier-to-maintain format. ... This Manual of Style has the simple purpose of making things easy to read by following a consistent format — it is a style guide. ... Wikipedia does not have an article with this exact name. ... Wiktionary is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...

• Categorization, or Classification. A set, or class, of things, as in the "category of living things."

• In Philosophy, in the plural, Categories, the ultimate kinds of things.
  • Categories, a text by Aristotle.
  • Aristotle's Categories
  • Kant's Categories
  • Category of being in metaphysics.

• In games
  • Categories (game). A game involving naming categories of things.
  • Categories (card game), a variant of the above, played with cards.

• In Medicine
  • Pregnancy category

• In Mathematic
  • In Category (mathematics), from category theory, a collection of mathematical objects of the same kind, together with the structure-preserving processes between them.
  • In Category (topology) in mathematics.

• In the Sport of Boxing, weight divisions are often called "Categories". Other sports sometimes have categories during tournaments, or categories that divide players and athletes by talent level.

• In Programming, or Software
  • Object-oriented programming
    • Smalltalk implementations often allows the programmer to classify methods and classes in different categories.
    • Objective-C Categories allows adding methods to a class without accessing its source code.
    • Logtalk categories allows the encapsulation of related methods, acting as fine-grained units of code reuse. Categories can be virtually imported by any object, without any code duplication, and independently of object hierarchies.

For Wikipedias categorization projects, see Wikipedia:Categorization. ... Classification may refer to: Taxonomic classification See also class (philosophy) Statistical classification Security classification Hint: Language use may refer to a taxonomic classification that is used for statistical purposes also as a statistical classification (like International Statistical Classification of Diseases and Related Health Problems). ... Socrates (central bare-chested figure) about to drink hemlock as mandated by the court. ... See also the category disambiguation page. ... Categories (or Categoriae) is a text from Aristotles Organon that enumerates all the possible kinds of thing which can be the subject or the predicate of a proposition. ... Aristotle (Greek: AristotélÄ“s) (384 BC – March 7, 322 BC) was a Greek philosopher, a student of Plato and teacher of Alexander the Great. ... Aristotle (Greek: AristotélÄ“s) (384 BC – March 7, 322 BC) was a Greek philosopher, a student of Plato and teacher of Alexander the Great. ... See also the category disambiguation page. ... Immanuel Kant Immanuel Kant (April 22, 1724 – February 12, 1804) was a Prussian philosopher, generally regarded as one of Europes most influential thinkers and the last major philosopher of the Enlightenment. ... See also the category disambiguation page. ... In metaphysics (in particular, ontology), the different kinds or ways of being are called categories of being or simply According to the Aristotelian tradition, a being is anything that can be said to be in the various senses of this word. ... Tug of war is an easily organized, impromptu game that requires little equipment. ... Categories is a word game in which players think of words that begin with specified letters and belong to specified semantic categories. ... Categories is a word game in which players think of words that begin with specified letters and belong to specified semantic categories. ... Medicine is a branch of health science and the sector of public life concerned with maintaining or restoring human health through the study, diagnosis, treatment and possible prevention of disease and injury. ... The pregnancy category of a pharmaceutical agent is an assessment of the risk of fetal injury due to the pharmaceutical, if it is used as directed by the mother during pregnancy. ... Mathematics is commonly defined as the study of patterns of structure, change, and space; more informally, one might say it is the study of figures and numbers. Mathematical knowledge is constantly growing, through research and application, but mathematics itself is not usually considered a natural science. ... In mathematics, categories allow one to formalize notions involving abstract structure and processes which preserve structure. ... In mathematics, category theory deals in an abstract way with mathematical structures and relationships between them. ... In mathematics, a Baire space is a topological space which, intuitively speaking, is very large and has enough points for certain limit processes. ... Professional boxing bout featuring Ricardo Domínguez (left) versus Rafael Ortíz Boxing, also called pugilism, prizefighting (when referring to professional boxing) or the sweet science (a common nickname among fans), is a sport and martial art in which two participants of similar weight fight each other with their fists... Computer programming (often simply programming) is the craft of implementing one or more interrelated abstract algorithms using a particular programming language to produce a concrete computer program. ... Computer software (or simply software) refers to one or more computer programs and data held in the storage of a computer for some purpose. ... Object-oriented programming (OOP) is a programming paradigm that uses abstraction to create models based on the real world. ... Smalltalk is an object-oriented, dynamically typed, reflective programming language. ... Objective-C, often referred to as ObjC or more seldomly as Objective C or Obj-C, is an object oriented programming language implemented as an extension to C. It is used primarily on Mac OS X and GNUstep, two environments based on the OpenStep standard, and is the primary language... Logtalk is an open source object-oriented extension to Prolog. ...

See also

• Category A, B, C and D prisons
• Category 3
• Category 5
• Category 6

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