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English definition of “penthouse”

penthouse

noun [C] uk   /ˈpent.haʊs/ us  
an expensive apartment or set of rooms at the top of a hotel or tall building: The singer is staying in a penthouse suite (= set of rooms) in the Hilton.Houses and homes
(Definition of penthouse from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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