>>20
As already stated, 'nothing' is a concept referring to the negation of existence. This is a useful concept, no? When I say there is 'nothing' in my fridge, I'm not saying there's a vacuum there. I'm saying it's NOT the case that it contains things. In this context, 'things' refer to food. (Pedants who say 'ah, but there's still air in there!' are being silly and everyone can see that).

We already have a perfectly good word for the absolutely empty vacuum: 'vacuum'.