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

Meanwhile, Griffin continues to own the full-floor penthouse condo on the 67th floor of the Park Tower, which is the building’s top floor. —Bob Goldsborough, The Mercury News, 25 Apr. 2024

The building will have 401 apartment units, ranging in size from studios to two-bedrooms, and includes penthouse options. —Corina Vanek, The Arizona Republic, 17 Apr. 2024

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