penthouse

noun

pent·​house ˈpent-ˌhau̇s 

1

a

: a shed or roof attached to and sloping from a wall or building

b

: a smaller structure joined to a building : annex

2

: a structure or dwelling on the roof or top floor of a building

Synonyms

• addition

Examples of penthouse in a Sentence

had a small penthouse built to serve as a toolshed

Recent Examples on the Web

O’Donnell, who recently relocated to Ireland with her child Clay because of American politics, finally offloaded her New York City penthouse in Midtown Manhattan’s Turtle Bay neighborhood in April for around $7 million after two years on the market. —Wendy Bowman, Robb Report, 2 Sep. 2025

The penthouse has five bedrooms and four-and-a-half bathrooms. —Celia Fernandez, CNBC, 30 Aug. 2025

The remaining 149 owners will be people of means who might potentially buy the $59 million Unique triplex penthouse rising from floors 63 to 65. —Lilian Raji, Forbes.com, 30 Aug. 2025

Her first home, purchased in 2009, is a three-bedroom penthouse in Nashville, near the heart of Music Row. —Chad Murphy, Cincinnati Enquirer, 27 Aug. 2025

Word History

Etymology

alteration of Middle English pentis, from Anglo-French apentiz, from apent, past participle of apendre, appendre to attach, hang against — more at append

First Known Use

14th century, in the meaning defined at sense 1a

Rhymes for penthouse

• alehouse
• almshouse
• backhouse
• baghouse
• bakehouse
• bathhouse
• bauhaus
• blockhouse
• boathouse
• brewhouse
• bunkhouse
• clubhouse

Kids Definition

penthouse

noun

pent·​house ˈpent-ˌhau̇s 

1

: a sloping roof or a shed attached to a wall or building

2

: a structure (as an apartment) built on the roof of a building