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1. An operation that segregates items into groups according to a specified criterion
   "the bottleneck in mail delivery is the process of sorting";
   - sort
    
2. The basic cognitive process of arranging into classes or categories
   - classification, categorization, categorisation [Brit]
    
3. Grouping by class, kind or size

1. Examine in order to test suitability
   "sort these samples";
   - screen, screen out, sieve
    
2. Arrange or order by classes or categories
   "How would you sort these pottery shards--are they prehistoric?";
   - classify, class, assort, sort out, separate

Derived forms: sortings

Type of: basic cognitive process, categorise [Brit], categorize, choose, grouping, operation, pick out, select, take

Encyclopedia: Sorting