So the term the Universe is used to describe reality in its largest form, as far as I know. Everything that is real is a part of the Universe and nothing that exists is outside of it. If it turns out that we live in a multiverse full of parallel realities, that there are other dimensions, that universes existed before the big bang, etc. then our Universe just becomes one of many realities.
So is there a term for reality on that higher level? The term multiverse describes a reality that has all the universes, but if reality existed before the big bang or in other dimensions is there a term to encompass those?