domain definition, meaning - what is domain in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “domain”

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domain

noun [C] uk   /dəˈmeɪn/  us   /doʊ-/

domain noun [C] (AREA)

C1 an area of interest or an area over which a person has control: She treated the business as her private domain. These documents are in the public domain (= available to everybody).
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domain noun [C] (INTERNET)

specialized internet & telecoms a set of websites on the internet that end with the same letters, for example .com
(Definition of domain from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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