Noun classification has 4 senses
  1. categorization, categorisation, classification, compartmentalization, compartmentalisation, assortment - the act of distributing things into classes or categories of the same type
    --1 is a kind of grouping
    --1 has particulars:
     indexing; reclassification; relegation; stratification; taxonomy; typology
    Derived forms: verb classify3, verb classify1
  2. classification, categorization, categorisation - a group of people or things arranged by class or category
    --2 is a kind of arrangement
    --2 has particulars: dichotomy, duality
    Derived forms: verb classify3, verb classify1
  3. classification, categorization, categorisation, sorting - the basic cognitive process of arranging into classes or categories
    --3 is a kind of basic cognitive process
    --3 has particulars:
     appraisal, assessment; attribution, ascription; attribution, ascription; cross-classification, cross-division; subsumption
    Derived forms: verb classify3, verb classify1
  4. classification - restriction imposed by the government on documents or weapons that are available only to certain authorized people
    --4 is a kind of
    restriction
    Antonyms: declassification
    Derived form: verb classify2
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