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

Three walls of oversized casement windows, including a semicircular expanse, and soaring 11-foot ceilings flood the space with sunlight and turn the skyline into an ever-changing artwork. —Abby Montanez, Robb Report, 29 Sep. 2025

The large bedroom, with wood paneling and casement windows, is quite handsome. —Matthew Sedacca, Curbed, 22 Sep. 2025

The United Church of Rogers Park’s nearly 100-year-old building, with its dark brown wood paneling and vintage casement windows, is an atmospheric stand-in for a provincial Russian household around the turn of the 20th century. —Emily McClanathan, Chicago Tribune, 8 Aug. 2025

Oversized black casement windows reframe views and pull more of the hillside into the interior. —Spencer Elliott, Forbes.com, 30 July 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