cat·ego·rize categorizes categorizing categorized in BRIT, also use categorise If you categorize people or things, you divide them into sets or you say which set they belong to. Lindsay, like his films, is hard to categorise Make a list of your child's toys and then categorise them as sociable or antisocial. new ways of categorizing information. = classify + categorization categorizations cat·ego·ri·za·tion the categorisation of new types of missiles. = classification. to put people or things into groups according to the type of person or thing they are = classify