1. (noun) categorization, categorisation, classification, compartmentalization, compartmentalisation, assortment
the act of distributing things into classes or categories of the same type
Synonyms: smorgasbord, salmagundi, mixed bag, classification, categorisation, categorization, compartmentalisation, motley, sorting, miscellanea, miscellany, potpourri, variety, assortment, mixture, compartmentalization
Antonyms: declassification
2. (noun) classification, categorization, categorisation
a group of people or things arranged by class or category
Synonyms: compartmentalization, assortment, compartmentalisation, classification, sorting, categorization, categorisation
Antonyms: declassification
3. (noun) classification, categorization, categorisation, sorting
the basic cognitive process of arranging into classes or categories
Synonyms: classification, categorisation, categorization, compartmentalisation, sorting, sort, assortment, compartmentalization
Antonyms: declassification
4. (noun) classification
restriction imposed by the government on documents or weapons that are available only to certain authorized people
Synonyms: compartmentalization, assortment, compartmentalisation, sorting, categorization, categorisation
Antonyms: declassification
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Synonyms for classification 
