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

That tower has 356 units, ranging from studios to three-bedrooms and townhome and penthouse options. —Desiree Mathurin, Charlotte Observer, 28 Jan. 2026

The 38,000-square-foot home boasts 12 bedrooms and 24 bathrooms, along with a 12-car garage, a 5,000-square-foot guest penthouse, a caretaker house and a two-bedroom guardhouse. —Natalia Senanayake, PEOPLE, 27 Jan. 2026

There’s also a 5,000-square-foot guest penthouse, a two-bedroom guardhouse, and a caretaker property on the estate. —Lara Walsh, InStyle, 27 Jan. 2026

The extravagance of the hotel comes to the fore in the suites and penthouses. —Condé Nast, Condé Nast Traveler, 26 Jan. 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