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

This frame marks its second stint in the penthouse. —Hugh McIntyre, Forbes.com, 12 Apr. 2025

Key among the changes planned for the penthouse space are an enlarged bar that will expand seating from 12 to 22. —Lori Weisberg, San Diego Union-Tribune, 11 Apr. 2025

Up on the top two floors, the penthouse-style living quarters feature three bedrooms, as well as a fireside living room, a study, and another kitchen that leads out to an alfresco dining terrace. —Wendy Bowman, Robb Report, 8 Apr. 2025

For penthouse guests, there’s no need to wander. —Ashlee Marie Preston, Forbes.com, 8 Apr. 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