Template:Birth date and age df=yes

{{#invoke:For|For}}{{SAFESUBST:#invoke:Unsubst||date=__DATE__ |$B= {{#invoke:Message box|ambox}} }}{{#invoke:Side box|main}} Category, plural categories, may refer to:

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General uses

Classification, the general act of allocating things to classes/categories

Philosophy

Science

Cognitive categorization, categories in cognitive science
Statistical classification, statistical methods used to effect classification/categorization

Mathematics

Category (mathematics), a structure consisting of objects and arrows
Category (topology), in the context of Baire spaces
Lusternik–Schnirelmann category, sometimes called LS-category or simply category
Categorical data, in statistics

Linguistics

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Lexical category, a part of speech such as noun, preposition, etc.
Syntactic category, a similar concept which can also include phrasal categories
Grammatical category, a grammatical feature such as tense, gender, etc.

Other

Category (chess tournament)
Objective-C categories, a computer programming concept
Pregnancy category
Prisoner security categories in the United Kingdom
Weight class (boxing)
List of software categories
Categories (word game), a classic party game
Saffir–Simpson hurricane wind scale, a common categorization of hurricane intensities
Categories of New Testament manuscripts
Network cable categories: 1, 2, 3, 4, 5/5e, 6/6a, 7/7a (F)
A classification in a system of compartmentalization (information security)

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