RhymeZone: classification definitions

Definitions of classification:

noun: restriction imposed by the government on documents or weapons that are available only to certain authorized people
noun: the basic cognitive process of arranging into classes or categories
noun: a group of people or things arranged by class or category
noun: the act of distributing things into classes or categories of the same type

Search for classification at other dictionaries: OneLook, Oxford, American Heritage, Merriam-Webster, Wikipedia

See classification used in context: 6 rhymes, several books and articles.