کی تعریف — انگریزی
- An opening constructed in a wall or roof that functions to admit light or air to an enclosure and is often framed and spanned with glass mounted to permit opening and closing.
- An interval of time during which an activity can or must take place: a brief window of opportunity for a space mission; a window of vulnerability during which the air force was subject to attack.
- Computer Science A rectangular area on the screen that displays its own file or message independently of the other areas of the screen.
- Aerospace An area at the outer limits of the earth's atmosphere through which a spacecraft must pass in order to return safely.