An opening, usually covered by one or more panes of clear glass, to allow light and air from outside to enter a building or vehicle.

(transitive) To furnish with windows. / (transitive) To place at or in a window. / (transitive, signal processing) To apply a window function to (a signal).

plural of window

Third-person singular simple present indicative form of window

The windows of a building; fenestration. / (computing) The use of a graphical user interface divided into windows.

present participle of window

Fitted with windows (often of a particular kind). / (computing, graphical user interface) Occupying only a part of the screen (in a window.)

simple past tense and past participle of window

plural of windowful

The amount displayed in a window.