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: 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
Sunlight pouring in through the large casement window, which is open.
—Ayad Akhtar, The Atlantic, 4 Dec. 2024
There were also repairs made to the glass awning and steel casement windows.
—Abby Montanez, Robb Report, 25 Nov. 2024
Photo: Brown Harris Stevens Looking over the library, a guest bedroom takes up the rest of the top floor and is lit with two skylights and a casement window over the garden.
—Adriane Quinlan, Curbed, 24 Oct. 2024
In the back of the room is a bar, which is also the kitchen; at the front, just inside a great casement window that fills the front wall, is a spinet piano made of blond wood and confettied with stickers.
—Helen Rosner, The New Yorker, 20 Oct. 2024
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Word History
Etymology
Middle English, hollow molding
First Known Use
15th century, in the meaning defined above
Time Traveler
The first known use of casement was
in the 15th century
Dictionary Entries Near casement
Cite this Entry
“Casement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casement. Accessed 25 Dec. 2024.
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
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