CATEGORY
category
(noun) a general concept that marks divisions or coordinations in a conceptual scheme
class, category, family
(noun) a collection of things sharing a common attribute; “there are two classes of detergents”
Source: WordNet® 3.1
Etymology
Noun
category (plural categories)
A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
(mathematics) 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.
Synonyms
• (group to which items are assigned): class, family, genus, group, kingdom, order, phylum, race, tribe, type
• See also class
Hyponyms
• conceptual category
• Eilenberg-Moore category
• Kleisli category
• macrocategory
• microcategory
• monoid
• partially ordered set
• perceptual category
• subcategory
• supercategory
Source: Wiktionary
Cat"e*go*ry, n.; pl. Categories Etym: [L. categoria, Gr.
1. (Logic.)
Definition: 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.
The categories or predicaments -- the former a Greek word, the latter
its literal translation in the Latin language -- were intended by
Aristotle and his followers as an enumeration of all things capable
of being named; an enumeration by the summa genera i.e., the most
extensive classes into which things could be distributed. J. S. Mill.
2. Class; also, state, condition, or predicament; as, we are both in
the same category.
There is in modern literature a whole class of writers standing
within the same category. De Quincey.
Source: Webster’s Unabridged Dictionary 1913 Edition