Double-hung vertically sliding sash or frames.
A 2 piece window comprising of top and bottom sections which move independently of each other.
a window with (usually two) sashes that slide vertically to let in air
a window composed of sashes
a window formed with sashes or sliding frames running in vertical grooves.
A sash window usually refers to a double-hung setup that slides up and down. Another common setup is the Casement Window.
A sliding section of window or window frame with multiple glass panes.
A sash window or hung sash window is made of one or more movable panels or "sashes" that form a frame to hold panes of glass which are often separated from other panes (or "lights") by narrow muntin bars. Although any window with this style of glazing is technically "a sash", the term is used almost exclusively to refer to windows where the glazed panels are opened by sliding vertically, or horizontally in a style known as a Yorkshire or sliding sash. Sash windows are common in Europe and former colonies including the United States and many developing nations.