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

The unit, occupying the entire ninth floor just below the penthouse, offers three bedrooms, three full bathrooms, and a powder room in roughly 2,400 square feet designed by Workshop/APD. — Wendy Bowman, Robb Report, 9 Oct. 2026

Last summer, the building became the subject of local gossip when its duplex penthouse hit the market for a seemingly absurd $25,000 a month. — Kim Velsey, Curbed, 9 Oct. 2026

Rooms With 104 rooms that range from 319 sqft king or queen to an over 700sqft penthouse, there are options. — Condé Nast, Condé Nast Traveler, 9 Oct. 2026

The home of the witches led by Supreme Cordelia Goode (Sarah Paulson) contrasts the devil’s penthouse with its reappearance, according to production designer Anu Schwartz, its opalescent interiors embodying the bright magic of the matriarchal coven. — Mekita Rivas, Architectural Digest, 8 Oct. 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