casement

noun

case·​ment ˈkās-mənt 

: a window sash that opens on hinges at the side

also : a window with such a sash

Examples of casement in a Sentence

Recent Examples on the Web

This rustic, log cabin-esque tiny house also features a charming double casement window that conveniently opens outward—not inward—to maximize the cabin’s interior space. —Stephanie Osmanski, Better Homes & Gardens, 30 Mar. 2025

There are large casement windows throughout the home that have single-pane glass, original to the home built 66 years ago. —Doug Ross, Chicago Tribune, 29 Mar. 2025

This week, a Murray Hill one-bedroom with casement windows and East River views and a Brooklyn Heights high-floor one-bedroom about a block from the Promenade. —Kim Velsey, Curbed, 11 Mar. 2025

The 2,322-square-foot home is cozy yet ample, and features oversized casement windows, several of which have seats large enough for a child to curl up in with a book. —Mike Klingaman, Baltimore Sun, 14 Jan. 2025

Word History

Etymology

Middle English, hollow molding

First Known Use

15th century, in the meaning defined above

Rhymes for casement

• abasement
• debasement
• defacement
• displacement
• effacement
• emplacement
• encasement
• misplacement
• outplacement
• replacement
• basement
• placement

Kids Definition

casement

noun

case·​ment ˈkā-smənt 

1

: a window frame opening on hinges like a door

2

: a window with a casement

Biographical Definition

Casement

biographical name

Case·​ment ˈkās-mənt 

Sir Roger David 1864–1916 Irish rebel