electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air
a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened
a transparent panel (as of an envelope) inserted in an otherwise opaque material
(computer science) a rectangular part of a computer screen that contains a display different from the rest of the screen
an opening in the wall of a building (usually to admit light and air); "he stuck his head in the window"
an opening that resembles a window in appearance or function; "he could see them through a window in the trees"
the time period that is considered best for starting or finishing something; "the expanded window will give us time to catch the thieves"; "they had a window of less than an hour when an attack would have succeeded"
an intricate knot tied by Gordius, the king of Phrygia, and cut by the sword of Alexander the Great after he heard that whoever undid it would become ruler of Asia
any very difficult problem; insoluble in its own terms