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Definition of penthouse

penthouse

/ˈpɛntˌhaʊs/
pent · house

Plural:penthouses
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penthouse Lexical Profile

penthouse Game Scores & Validity

• noun

1

An apartment or suite of rooms on the top floor of a tall building, typically luxurious and set back from the outer walls to provide a surrounding terrace.

Example

"The penthouse on the fortieth floor offered panoramic views of the city skyline."


2

A structure on the roof of a building used to house elevator machinery, air-conditioning equipment, or stairwell access.

Example

"The technicians climbed up to the mechanical penthouse to inspect the elevator motors."


3

An attached shed, lean-to, or sloping roof projecting from the wall of a main building to provide shelter.

Example

"Stacked firewood was kept dry beneath the wooden penthouse built against the stone barn."

Synonyms
View all synonyms for penthouse

Word Origin & Etymology

From Middle English pentis ('attached shed or lean-to'), borrowed from Old French apentis, from Late Latin appendicium ('appendage'). In the 16th century, the word was reshaped by folk etymology under the influence of the English words 'pent' (sloping) and 'house'.

Cite this Entry


Wordmom. (2026). Definition of Penthouse. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/penthouse
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