When a character's body is passing or leaning halfway through a Window frame - possibly to reach something, or to escape an area.
Do not use when the character smashes through a window, use Breaking Through Window instead.
If the character is leaning on the window, use Leaning Out Of Window.
Not to be confused with, though they're not mutually exclusive:
- From Outside, a viewpoint from outside through a window.
- Looking Outside, character is looking through a window.