#1 classification n. [categorization, categorisation, compartmentalization, compartmentalisation, assortment] the act of distributing things into classes or categories of the same type. wn
#2 classification n. [categorization, categorisation] a group of people or things arranged by class or category. wn
#3 classification n. [categorization, categorisation, sorting] the basic cognitive process of arranging into classes or categories. wn
#4 classification n. restriction imposed by the government on documents or weapons that are available only to certain authorized people. wn
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