class, category, familynoun
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
A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.
Etymology: From categorie, from categoria, from.
one of the highest classes to which the objects of knowledge or thought can be reduced, and by which they can be arranged in a system; an ultimate or undecomposable conception; a predicament
class; also, state, condition, or predicament; as, we are both in the same category
Etymology: [L. categoria, Gr. , fr. to accuse, affirm, predicate; down, against + to harrangue, assert, fr. assembly.]
In mathematics, a category is an algebraic structure that comprises "objects" that are linked by "arrows". A category has two basic properties: the ability to compose the arrows associatively and the existence of an identity arrow for each object. A simple example is the category of sets, whose objects are sets and whose arrows are functions. On the other hand, any monoid can be understood as a special sort of category, and so can any preorder. In general, the objects and arrows may be abstract entities of any kind, and the notion of category provides a fundamental and abstract way to describe mathematical entities and their relationships. This is the central idea of category theory, a branch of mathematics which seeks to generalize all of mathematics in terms of objects and arrows, independent of what the objects and arrows represent. Virtually every branch of modern mathematics can be described in terms of categories, and doing so often reveals deep insights and similarities between seemingly different areas of mathematics. For more extensive motivational background and historical notes, see category theory and the list of category theory topics. Two categories are the same if they have the same collection of objects, the same collection of arrows, and the same associative method of composing any pair of arrows. Two categories may also be considered "equivalent" for purposes of category theory, even if they are not precisely the same.
Chambers 20th Century Dictionary
kat′e-gor-i, n. what may be affirmed of a class: a class or order.—adjs. Categoremat′ic, capable of being used by itself as a term; Categor′ical, positive: absolute: without exception.—adv. Categor′ically, absolutely: without qualification: expressly.—n. Categor′icalness, the quality of being absolute and unqualified.—n.pl. Cat′egories (phil.), the highest classes under which objects of philosophy can be systematically arranged, understood as an attempt at a comprehensive classification of all that exists: in Kant's system, the root-notions of the understanding, the specific forms of the a priori or formal element in rational cognition (quantity, quality, relation, modality, &c.).—v.t. Cat′egorise, to place in a category or list: to class.—n. Categor′ist, one who categorises.—Categorical imperative, in the ethics of Kant, the absolute unconditional command of the moral law, irrespective of every ulterior end or aim—universally authoritative, belonging to the fixed law of nature—'Act from a maxim at all times fit for law universal.' [Gr. katēgoria, katēgoros, an accuser, kata, down, against, agora, assembly.]
British National Corpus
Spoken Corpus Frequency
Rank popularity for the word 'category' in Spoken Corpus Frequency: #2971
Rank popularity for the word 'category' in Nouns Frequency: #700
The numerical value of category in Chaldean Numerology is: 8
The numerical value of category in Pythagorean Numerology is: 4
It is, I think, consistent with those -- the beginning of shuttle and beginning of Apollo, i think it's in the same category.
I am so thrilled it's a tie, I can't tell you, the world kind of pits us against each other in this profession and I know that from all the women in this category, and I think I can speak for all the women in this room, we celebrate each other.
I was aghast that there was no women’s bodybuilding, if there’s a category for men, why can’t there be a category for women?
Anytime a savvy retailer enters the category, I think the existing players have to question if their price architecture is right, particularly when someone enters the private label side of the category.
The crackdown took away the gifting... that was a tradition in China, and luxury brands were very good for that, especially in the male category.
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Translations for category
From our Multilingual Translation Dictionary
- categoriaCatalan, Valencian
- کتگوری, رستهPersian
- kategoria, luokkaFinnish
- catagóir, earnáilIrish
- seòrsa, gnèScottish Gaelic
- קָטֵגוֹרְיָה, מַחְלָקָה, סוּגHebrew
- वर्ग, श्रेणीHindi
- ստորոգում, կատեգորիա, կարգArmenian
- 圏, 部門, 範疇, 分類, 種別Japanese
- 범주, 範疇, 분류, 分類Korean
- kategoriNorwegian Nynorsk
- categorii, categorieRomanian
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