classification
(noun)
noun
1. the act of distributing things into classes or categories of the same type
Similar word(s): assortment, categorization, compartmentalization
Definition categories: act, grouping
2. a group of people or things arranged by class or category
Similar word(s): categorization
Definition categories: group, arrangement
3. the basic cognitive process of arranging into classes or categories
Similar word(s): categorization, sorting
Definition categories: thought
4. restriction imposed by the government on documents or weapons that are available only to certain authorized people
Definition categories: act, confinement, restriction