a framework that holds the panes of a window in the window frame
"The old sash stuck halfway down, trapping us inside while it rained outside."
a band of material around the waist that strengthens a skirt or trousers
"The tailor sewed a leather sash into the back of her riding breeches to keep them securely in place while she was climbing."
A piece of cloth designed to be worn around the waist.
"The drafty old house had broken sashes that let the winter wind whistle through every room."
The opening part (casement) of a window usually containing the glass panes, hinged to the jamb, or sliding up and down as in a sash window.
To adorn with a sash.
"The carpenter decided to replace the old sliding windows by furnishing them with new wooden sashes that fit perfectly into the frames."
To furnish with a sash.
The word sash comes from the Arabic word šāš, which originally meant muslin cloth.