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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
There are a wealth of services out there that make beautiful window treatments, but far less of them that feel truly foolproof (try measuring a casement by yourself) and fall in a budget-friendly price range.
—Lila Allen, Architectural Digest, 17 Dec. 2024
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
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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 30 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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