window

Forms

1.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.
- She opened the window to let some air in.
- A window is an opening in a wall to admit light and air.
- Nanny Broome was looking up at the outer wall. Just under the ceiling there were three lunette windows, heavily barred and blacked out in the normal way by centuries of grime.
2.A period of time when something is available or possible; a limited opportunity.
- You have a two-hour window of clear weather to finish working on the lawn.
- Now she'll be thinking about fleeing. (The verdict delay) provides a window for potential flight..if she has not fled already.
- But rescuers have a dwindling window of opportunity, with forecasters predicting the return of heavy monsoon rains in the coming days, effectively sealing off the cave until October.
3.An opening, usually covered by glass, in a shop which allows people to view the shop and its products from outside; a shop window.
- Did you leave the window open?
- Do you know who broke the window?
- Close the door and open the window!
4.The shutter, casement, sash with its fittings, or other framework, which closes a window opening.
- Did you leave the window open?
- Do you know who broke the window?
- Close the door and open the window!

Common· #714

From Middle English wyndowe, wyndown, from Old Norse vindauga (“window”, literally “wind-eye; wind-hole”), equivalent to wind + eye.