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

Both women lived in The Adelicia complex, with Swift buying a penthouse in 2009 and Panettiere moving into the building three years later. — Allison Degrushe, StyleCaster, 21 Aug. 2026

That figure grew only a few days ago when Petal launched in the penthouse. — Hugh McIntyre, Forbes.com, 21 Aug. 2026

For example, on one seven-night Explora Journeys Mediterranean cruise, a 377-square-foot Ocean Terrace Suite costs $4,985 per person, while a 463- to 517-square-foot penthouse costs $7,235. — Erica Silverstein, Travel + Leisure, 20 Aug. 2026

What to do nearby Bishops Park is on the doorstep, and just 15 minutes away (and visible from the penthouse) is Harrods, Royal Albert Hall, the V&A Museum, and Chelsea. — Condé Nast, Condé Nast Traveler, 18 Aug. 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