Category, plural categories, may refer to:
Philosophy and general uses
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Categorization
Categorization is the ability and activity of recognizing shared features or similarities between the elements of the experience of the world (such as objects, events, or ideas), organizing and classifying experience by associating them to a ...
, categories in cognitive science, information science and generally
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Category of being In ontology, the theory of categories concerns itself with the ''categories of being'': the highest ''genera'' or ''kinds of entities'' according to Amie Thomasson. To investigate the categories of being, or simply categories, is to determine the m ...
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''Categories'' (Aristotle)
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Category (Kant)
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Categories (Peirce)
On May 14, 1867, the 27–year-old Charles Sanders Peirce, who eventually founded pragmatism, presented a paper entitled "On a New List of Categories" to the American Academy of Arts and Sciences. Among other things, this paper outlined a theory ...
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Category (Vaisheshika)
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Stoic categories
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Category mistake
A category mistake, or category error, or categorical mistake, or mistake of category, is a semantic or ontological error in which things belonging to a particular category are presented as if they belong to a different category, or, alternativel ...
Mathematics
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Category (mathematics), a structure consisting of objects and arrows
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Category (topology), in the context of Baire spaces
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Lusternik–Schnirelmann category, sometimes called ''LS-category'' or simply ''category''
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Categorical data
In statistics, a categorical variable (also called qualitative variable) is a variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual or other unit of observation to a particular group o ...
, in statistics
Linguistics
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Lexical category, a part of speech such as ''noun'', ''preposition'', etc.
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Syntactic category A syntactic category is a syntactic unit that theories of syntax assume. Word classes, largely corresponding to traditional parts of speech (e.g. noun, verb, preposition, etc.), are syntactic categories. In phrase structure grammars, the ''phrasal ...
, a similar concept which can also include phrasal categories
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Grammatical category
In linguistics, a grammatical category or grammatical feature is a property of items within the grammar of a language. Within each category there are two or more possible values (sometimes called grammemes), which are normally mutually exclusive ...
, a grammatical feature such as ''tense'', ''gender'', etc.
Other
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Category (chess tournament)
A chess tournament is a series of chess games played competitively to determine a winning individual or team. Since the first international chess tournament in London, 1851, chess tournaments have become the standard form of chess competition amo ...
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Objective-C categories, a computer programming concept
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Pregnancy category
The pregnancy category of a medication is an assessment of the risk of fetal injury due to the pharmaceutical, if it is used as directed by the mother during pregnancy. It does ''not'' include any risks conferred by pharmaceutical agents or their ...
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Prisoner security categories in the United Kingdom
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Weight class (boxing)
In boxing, a weight class is a measurement weight range for boxers. The lower limit of a weight class is equal to the upper weight limit of the class below it. The top class, with no upper limit, is called heavyweight in professional boxing and ...
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List of software categories
Software categories are groups of software. They allow software to be understood in terms of those categories, instead of the particularities of each package. Different classification schemes consider different aspects of software.
Computer softwa ...
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Categories (word game)
Categories is a word game where players attempt to list words that fit into particular categories, all starting with the same letter. Players start by deciding on a list of categories between them, such as "town" or "actor", and each writing that ...
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Saffir–Simpson hurricane wind scale, a common categorization of hurricane intensities
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Categories of New Testament manuscripts
New Testament manuscripts in Greek are categorized into five groups, according to a scheme introduced in 1981 by Kurt
Kurt is a male given name of Germanic or Turkish origin. ''Kurt'' or ''Curt'' originated as short forms of the Germanic Con ...
* Network cable categories:
1,
2,
3,
4,
5/5e,
6/6a,
7/7a (F)
* A classification in a system of
compartmentalization (information security)
Compartmentalization or compartmentalisation may refer to:
* Compartmentalization (biology)
* Compartmentalization (engineering)
* Compartmentalization (fire protection)
* Compartmentalization (information security)
* Compartmentalization (ps ...
See also
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Categorical (disambiguation)
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Category 1 (disambiguation) Category 1 can refer to:
*Category 1 cable, an electrical standard for communications wiring
* Category 1 tropical cyclone, on any of the Tropical cyclone scales
* Cat11egory 1 pandemic, on the Pandemic Severity Index, an American influenza pande ...
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Category 2 (disambiguation) Category 2 or Category II may refer to:
* Category 2 cable, a grade of unshielded twisted pair cabling
* Category 2 tropical cyclone, on any of the Tropical cyclone scales
* Category 2 pandemic, on the Pandemic Severity Index, an American influen ...
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Category 3 (disambiguation) Category 3 or Category III can refer to:
* Category 3 cable, a specification for data cabling
* British firework classification
* Category 3 tropical cyclone, on any of the tropical cyclone scales
* Category 3 pandemic, on the Pandemic Severity In ...
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Category 4 (disambiguation)
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Category 5 (disambiguation)
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Category 6 (disambiguation)
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Category 7: The End of the World
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Category A (disambiguation)
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Category B (disambiguation)
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Category C (disambiguation)
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