- class: a collection of things sharing a common attribute; "there are two classes of detergents"
- a general concept that marks divisions or coordinations in a conceptual scheme
- The Elo rating system is a method for calculating the relative skill levels of players in two-player games such as chess. It is named after its creator Arpad Elo, a Hungarian-born American physics professor.
- In mathematics, the Lyusternik–Schnirelmann category (or, Lusternik–Schnirelmann category, LS-category, or simply, category) of a topological space is the topological invariant defined to be the smallest cardinality of an index set such that there is an open covering of with the property that ...
- In Kant's philosophy, a category is a pure concept of the understanding. A Kantian category is a characteristic of the appearance of any object in general, before it has been experienced. Kant wrote that "They are concepts of an object in general…." Kant also wrote that "… ...
- In mathematics, a category is an algebraic structure consisting of a collection of "objects", linked together by a collection of "arrows" that have two basic properties: the ability to compose the arrows associatively and the existence of an identity arrow for each object. ...
- In metaphysics (in particular, ontology), the different kinds or ways of being are called categories of being or simply categories. To investigate the categories of being is to determine the most fundamental and the broadest classes of entities. ...
- Taxonomy is the practice and science of classification. The word finds its roots in the Greek τάξις, taxis (meaning 'order' or 'arrangement') and νόμος, nomos (meaning 'law' or 'science'). Taxonomy uses taxonomic units, known as taxa (singular taxon).
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- (Categories) are pre-specified ways to organise content – for example, a set of keywords that you can use but not add to when posting on a site. They form part of a taxonomy.
- (Categories) A collection of topic specific posts
- (Categories) 1884 books | Oxford dictionaries | English dictionaries | English non-fiction literature | English culture | English language
- (Categories) love and relationships, Making an Impact
- (Categories) Book (Ebook) reviews,
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- (Categories) Select Category Coaching, Meditation etc. Physical Therapies Special Offers
- categories are ways to organize content on a site. Blogs often organize their archive into categories which group older posts by topic.
- (6. Categories) Organizing blog topics by grouping related topics together to make it easier to find
- (CATEGORIES) A somewhat useful way of denoting distinctive areas of music (and other art forms), provided one recognises that there are always border line cases regardless of where one draws the border lines.
- (CATEGORIES) [In Marxist philosophy:] The most general notions or concepts reflecting the basic and essential properties and uniformities of the phenomena of nature, society and thought, such as matter, motion, time, space, consciousness, contradiction, necessity, chance, quality, quantity, ...
- (Categories (blog)) these allow you to sort your blog
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