Categorise /ˈkæt.ə. g ə r aɪz/ verb [ t ] to put people or things into groups with the same features The books are categorized into

co-exist , coexist /ˌkəʊ.ɪgˈzɪst/ verb [ I ]

to live or exist together at the same time or in the same place

He does not believe that modern medicine can co-exist with faith-healing.

451.	upgrade	/ʌpˈgreɪd/ verb [ T ] to improve the quality or usefulness of something, such as a machine or a computer program, or give a person a more important job or state that their job is more important than it was in the past It's quite simple to upgrade the indexing software. Congratulations, I hear you've been upgraded to divisional manager. Opposite downgrade /ˈʌp.greɪd/ noun [ C ] a piece of software or equipment that improves the quality or usefulness of a computer or machine a hardware upgrade The upgrade to version 5.0 costs $395.
452.	select	/sɪˈlekt/ verb [ I or T ] to choose a small number of things, or to choose by making careful decisions There was a choice of four prizes, and the winner could select one of them. A mouse is a device which makes it easier to select different options from computer menus. How do you select people for promotion? [ + object + to infinitive ] He was selected to play for Australia at the age of only 18. formal The supermarket's policy is to select out (= choose) the best fruit and discard the rest. adjective of only the best type or highest quality, and usually small in size or amount It's a very select club - I've been trying unsuccessfully to join it for years. These activities should be available to all pupils, not just a select few . Hamilton lives in a very select part of London.
453.	irrational	/ɪˈræʃ. ə n. ə l/ adjective not using reason or clear thinking It's totally irrational, but I'm frightened of mice. His parents were worried by his increasingly irrational behaviour.