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domain

noun [C] (AREA)
 
 
/dəˈmeɪn/ US  /doʊ-/

Definition

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).Duty, obligation and responsibilityTopics and areas of interest
(Definition of domain noun (AREA) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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