an expensive and comfortable flat/apartment or set of rooms at the top of a tall building a luxury penthouse suite Oxford Collocations DictionaryPenthouse is used before these nouns: apartment, flat, suite, … See full entry See related entries: Buildings 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.
Check pronunciation: penthouse
