A fixed glass window does not open or close regularly. Fixed glass can make your space feel bigger because there are no bands or frameworks obstructing your view.
A glass window is an opening constructed on a wall, door, or roof. It is generally made of glass and aluminum. Its function is to admit light or air to an enclosed space.
A sliding glass door is a type of door. It is made of a large glass window opening in a structure. It provides door access from a room to the outdoors.