windowpane
/ˈwɪndəʊˌpeɪn/Definitions
1. noun
a pane of glass in a window, typically made of two panes of glass with a gap between them, filled with a gas such as air, argon, or krypton, to reduce heat transfer and noise.
“The windowpane was fogged with dew, obstructing my view of the garden.”
2. noun
a pane of glass in a window, often used figuratively to refer to a view or an experience.
“The windowpane of the world was suddenly opened for her when she traveled abroad.”
3. noun
a transparent part of a structure, such as a building or a vehicle, that provides a view or allows light to enter.
“The windowpane of the observatory was covered with a protective film to prevent damage from the sun.”