WordReference Random House Learner's Dictionary of American English © 2019
- any group or division in a system of classification:several categories of students: part-time, full-time, degree, and nondegree.
- any general or comprehensive division;
- a classificatory division in any field of knowledge, as a phylum or any of its subdivisions in biology.
- (in Aristotelian philosophy) any of the fundamental modes of existence, such as substance, quality, and quantity, as determined by analysis of the different possible kinds of predication.
- (in Kantian philosophy) any of the fundamental principles of the understanding, as the principle of causation.
- any classification of terms that is ultimate and not susceptible to further analysis.
- Gamescategories. Also called Guggenheim. (used with a sing. v.) a game in which a key word and a list of categories, as dogs, automobiles, or rivers, are selected, and in which each player writes down a word in each category that begins with each of the letters of the key word, the player writing down the most words within a time limit being declared the winner.
- Mathematicsa type of mathematical object, as a set, group, or metric space, together with a set of mappings from such an object to other objects of the same type.
- GrammarSee part of speech.
- Greek katēgoría accusation (also, kind of predication), equivalent. to katé̄gor(os) accuser, affirmer (katēgor(eîn) to accuse, affirm, literally, speak publicly against, equivalent. to kata- cata- + -agoreîn to speak before the agora + -os noun, nominal suffix) + -ia -y3
- Late Latin catēgoria
- 1.See corresponding entry in Unabridged group, grouping, type.