Complete Definition of "category"

selfref|For information about Wiktionary categories, see Wiktionary:Categorization.
wikipedia
English

Etymology
From MF. catégorie, from LL. categoria, "class of predicables", from ancient Gr. κατηγορία, "head of predicables".

Pronunciation
IPA|/ˈkætəˌgoɹi/
audio|en-us-category.ogg|Audio (US)

Noun
en-noun|categories

  1. A group, often named or numbered, to which items are assigned based on similarity or defined criteria.

#: This steep and dangerous climb belongs to the most difficult category.
#: I wouldn't put this book in the same category as the author's first novel.

  1. mathematics A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow.

#: One well-known category has sets as objects and functions as arrows.

Related terms
categorical
categorise, categorize
category theory
subcategory, supercategory
categorial

Synonyms
class
family
genus
group
kingdom
order
phylum
race
tribe
type

Translations
trans-top|group
Chinese: 類別, 类别
Czech: kategorie f
Dutch: categorie f
Finnish: luokka, kategoria
French: catégorie f
German: Kategorie f
Greek: κατηγορία f (katēgoría)
Greek, Ancient: ΚΑΤΗΓΟΡΙΑ f
Hebrew: קטגוריה (qat'egoria) f
Italian: categoria f
trans-mid
Japanese: 部門(ぶもん, bumon), 分類 (bunrui), 種別 (shubetsu)
Latin: categoria f
Portuguese: categoria f
Russian: категория (kat'egórija)f
Slovene: kategorija f
Swedish: kategori c
trans-bottom

trans-top|collection in math
Czech: kategorie f
Dutch: categorie f
Finnish: kategoria
French: catégorie f
German: Kategorie f
trans-mid
Greek: κατηγορία f (katēgoría)
Italian: categoria f
Russian: категория (kat'egórija)f
Swedish: kategori c
trans-bottom

Translations to be checked
checktrans
ttbc|CJK Characters: 類, 类
ttbc|Korean: 카테고리, 범주
ttbc|Norwegian: kategori
ttbc|Novial: kategorie
ttbc|Spanish: categoría f

Category:Category theory
Category:Greek derivations

fa:category
fr:category
ko:category
io:category
id:category
it:category
pt:category
ru:category
simple:category
fi:category
sv:category
ta:category
te:category
vi:category
tr:category
zh:category

Revision and Credits for"category"
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