Definition of Classification

Noun: classification  ,kla-si-fi'key-shun

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

See also:
classifiable
classifications