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
• annex
• extension

Examples of penthouse in a Sentence

had a small penthouse built to serve as a toolshed

Recent Examples on the Web

The power couple's real estate empire spans multiple cities, including: Tribeca, New York City—Jay-Z's first major real estate purchase, an 8,000-square-foot penthouse, where the couple held their private wedding ceremony in 2008. —Justin Gest, Newsweek, 11 Feb. 2025

Plot twist: this New York City penthouse used to be the home of an award-winning Hollywood filmmaker. —Abby Montanez, Robb Report, 5 Feb. 2025

The character is introduced as a wealthy boy who lives in Trump Castle, similar to the president, who has a penthouse in Trump Tower. —Raven Brunner, People.com, 4 Feb. 2025

The sixth floor would include a penthouse and rooftop amenity space. —Nick Rosenberger, Idaho Statesman, 3 Feb. 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

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