Window

An opening in the wall of a building for the admission of light and air, usually closed by casements or sashes containing some transparent material, as glass, and capable of being opened and shut at pleasure.

The shutter, casement, sash with its fittings, or other framework, which closes a window opening.

A figure formed of lines crossing each other.

To furnish with windows.

To place at or in a window.

(computer science) a rectangular part of a computer screen that contains a display different from the rest of the screen

a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air