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

In addition to one king bedroom and one queen, the penthouse is home to three bathrooms (complete with Frette linens), one of which features a striking green sink. — Nicole Hoey, Robb Report, 17 July 2026

The penthouse comes with a pair of private terraces and floor-to-ceiling windows that have uninterrupted views of the Hudson and World Trade Center. — Matthew Sedacca, Curbed, 16 July 2026

Multi-room residences and penthouses can sleep anywhere from two to 12 people. — Condé Nast, Condé Nast Traveler, 14 July 2026

The penthouses on the topmost 14th floor can be combined to form a seven-bedroom cluster occupying that entire floor for those looking to max out. — Miami Herald, 13 July 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