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

Rosie O’Donnell is finally parting ways with her New York City penthouse amid her big move to Ireland. —Angel Saunders, People.com, 29 Mar. 2025

Klein’s penthouse had been put on the market before in 2019 for $6.5 million. —Rosemary Feitelberg, WWD, 25 Mar. 2025

Adding to its appeal, the penthouse also comes with 12 dedicated parking spaces and exclusive access via the only private elevator in the Burj Khalifa. —Abby Montanez, Robb Report, 24 Mar. 2025

Related is also building a luxury oceanfront condo tower in Bal Harbour, Miami, called Rivage Residences Bal Harbour, that is offering a mega-mansion in the sky — combining two penthouses that could total more than 20,000 square feet and fetch over $150 million. —Robert Frank, CNBC, 21 Mar. 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