a window frame that is hinged on one side a window containing frames hinged at the side or at the top or bottom - a poetic word for window
WordReference Random House Learner's Dictionary of American English © 2026
case•ment /ˈkeɪsmənt/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- BuildingAlso called ˈcase•ment ˈwin•dow. a window that has hinges on the sides.
case•ment
(kās′mənt),USA pronunciation n.
case′ment•ed, adj.
Case•ment (kās′mənt),USA pronunciation n.
- Buildinga window sash opening on hinges that are generally attached to the upright side of its frame.
- BuildingAlso called case′ment win′dow. a window with such a sash or sashes.
- a casing or covering.
- late Middle English. See case2, -ment 1375–1425
Case•ment (kās′mənt),USA pronunciation n.
- Biographical (Sir) Roger (David), 1864–1916, Irish patriot: hanged by the British for treason.
Collins Concise English Dictionary © HarperCollins Publishers::
Collins Concise English Dictionary © HarperCollins Publishers::
Sir Roger (David). 1864–1916, British diplomat and Irish nationalist: hanged by the British for treason in attempting to gain German support for Irish independence
'casement window' also found in these entries (note: many are not synonyms or translations):