1. (

• sort ,
• sorting

) an operation that segregates items into groups according to a specified criterion; "the bottleneck in mail delivery is the process of sorting" ;

2. (

• classification ,
• categorization ,
• categorisation ,
• sorting

) the basic cognitive process of arranging into classes or categories ;

3. (

• sorting

) grouping by class or kind or size ;

1. (

• screen ,
• screen_out ,
• sieve ,
• sort

) examine in order to test suitability; "screen these samples"; "screen the job applicants" ;

2. (

• classify ,
• class ,
• sort ,
• assort ,
• sort_out ,
• separate

) arrange or order by classes or categories; "How would you classify these pottery shards;