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Definition of penthouse noun from the Oxford Advanced Learner's Dictionary

penthouse

noun
 
/ˈpenthaʊs/
 
/ˈpenthaʊs/
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  1. an expensive and comfortable flat or set of rooms at the top of a tall building
    • a luxury penthouse suite
    Topics Buildingsc2
    Oxford Collocations DictionaryPenthouse is used before these nouns:
    • apartment
    • flat
    • suite
    See full entry
    Word OriginMiddle English pentis (originally referring to an outhouse or shelter with sloping roof), shortening of Old French apentis, based on late Latin appendicium ‘appendage’, from Latin appendere ‘hang on’. The change of form in the 16th cent. was by association with French pente ‘slope’ and house.
See penthouse in the Oxford Advanced American Dictionary
previously
adverb
 
 
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