categorization

Noun	1.	categorization - a group of people or things arranged by class or category Synonyms: categorisation, classification
	2.	categorization - the basic cognitive process of arranging into classes or categories Synonyms: categorisation, sorting, classification
	3.	categorization - the act of distributing things into classes or categories of the same type Synonyms: classification, compartmentalisation, compartmentalization, assortment, categorisation

arrangement, categorisation, categorise, categorize, classification, dichotomy, duality