noun
sash
A movable window frame that holds panes of glass.
The lower sash slides up to let fresh air inside.
Etymology
The French source names a supporting frame. Window sash specializes it to the framework holding the glass, especially a movable section.
More examples
- Dried paint keeps the sash from opening.
- She replaces the cracked pane without removing the sash.
- Both sashes tilt inward for easy cleaning.
Forms
sash · sashes
Similar words
- frame
- Names any supporting border, not specifically a movable window section.