A guitar is hollow. Just look in the hole the string go across. I have dropped my pick inside many many times.
Because guitar have been hollow for centuries, so the solid body guitar was something completely new at the time of its invention
hollow
It can be both.
It stands for Solid Guitar
Yes
A solid body guitar is just that, the body of the guitar is made of solid wood, some time one piece or a few, with no sound holes. A semi-hollow body guitar is made more like an acoustic guitar but more shallow, usually with sound holes off to the side rather than in the center as an acoustic guitar would. These sound holes are often in the shape of an "F."
Yes indeed it is!
It is for guitar volume and tone, it means that the top is solid and doesn't have any grooves in it.
A hollow body guitar is a guitar with a hollow body in contrast to solid body guitars. They are generally lighter that solid body guitars because its body mass is reduced as a result of the addition of sound chambers.
The s stand for solid top. so yes it is a solid top.
Laminate wood & solid wood.
les paul? (I think)