a glazed window frame, esp one that opens
WordReference Random House Unabridged Dictionary of American English © 2025
win′dow sash′,
- Buildingthe frame holding the pane of a window.
- 1755–65
Collins Concise English Dictionary © HarperCollins Publishers::
'window sash' also found in these entries (note: many are not synonyms or translations):
casement
- cellar sash
- check rail
- double-hung
- fillister
- light
- muntin
- open
- picture sash
- pulley stile
- rail
- reglet
- sash chain
- sash cord
- sash ribbon
- sash weight
- stile
- storm window
- weather strip
- windowpane