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English definition of “viewer”

viewer

noun [C]     /ˈvjuː.ər/ US  //
B2 a person who watches something, especially television: Millions of viewers will be glued to their sets for this match.Audiences and spectators a device for looking at slides (= photographs on small pieces of film)Photography
(Definition of viewer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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