Extreme Wide Shot (EWS)
In the extreme wide shot, the view is so far from the subject that s/he isn't even visible. The point of this shot is to show the subject's surroundings.
The EWS is often used as an "establishing shot" - the first shot of a new scene, designed to show the audience where the action is taking place.
It is also useful in scenes where the action is very spread out. For example, in a war movie an extreme wide shot can show the scale of the action.
The EWS is also known as an extra long shot or extreme long shot (acronym XLS).