: 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
Besides a generous layout, there are new soundproof casement windows; original oak floors; and high, beamed ceilings.
—
Kim Velsey, Curbed, 3 June 2025
What to look for: Overhanging eaves, exposed rafter tiles, stone and wood porch supports and narrow casement windows.
—Arkansas Online, 2 May 2025
The casement windows offer a pretty view of the East River.
—Heather Senison, New York Times, 1 May 2025
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
See All Example Sentences for casement
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Kim Velsey, Curbed, 3 June 2025
What to look for: Overhanging eaves, exposed rafter tiles, stone and wood porch supports and narrow casement windows.
—Arkansas Online, 2 May 2025
The casement windows offer a pretty view of the East River.
—Heather Senison, New York Times, 1 May 2025
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
See All Example Sentences for casement
Cite this Entry
“Casement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casement. Accessed 25 Jun. 2025.
Copy CitationKids Definition
casement
noun
case·ment
ˈkā-smənt 
1
: a window frame opening on hinges like a door
2
: a window with a casement
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