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 of penthouse

• addition

Examples of penthouse in a Sentence

had a small penthouse built to serve as a toolshed

Recent Examples on the Web

Of course, the pair of two-bedroom penthouses offer the best of both worlds, each with a 38-foot-long infinity pool that bleeds into the seascape dotted with surfers. — Condé Nast, Condé Nast Traveler, 1 Oct. 2026

Griffin was the subject of some unwanted attention in April for a $238 million New York City penthouse amid Democratic Socialist mayor Zohran Mamdani’s quest to tax luxury properties whose owners do not live full-time in the city. — Brian Boucher, ARTnews.com, 30 Sep. 2026

In the video, Mamdani singled out Griffin’s $238 million penthouse. — Samantha Delouya, CNN Money, 30 Sep. 2026

When Robb Report first covered the penthouse two years ago, the interiors were described as something of a miniature Faena Hotel. — Abby Montanez, Robb Report, 28 Sep. 2026

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