Omniverse

The omniverse (or Omniverse) is the largest of the classical -verses, surpassing a multiverse or even any of the archverses by a transfinite factor. While frequently argued to contain absolutely everything, there are limits to the Omniverse's extent, reached when one attempts to derive something not part of a given understanding of reality.

The Omniverse is a collection of multiple Megaverse on other side. It's everything that exists, doesn't exist, anything in between, below, above, anything any being within All can imagine with a name, except God. Those without an actual name technically exist outside the omniverse. This, and The Outside is all that is outside of the omniverse, in The noname verse All else is The Box, which contains all the omniverses, no questions about it.

The Omniverse holds everything that can be accessed through progressive powersets of any particular base universe (or "reality") within itself. It is the limit of archverse recursion - this can be the first limit ordinal ω, or a much higher transfinite, depending on the level of recursion considered. In a sense, it can indeed be argued to contain "all of Reality", but only in the sense that those below it observe it to be as such. The inhabitants of a universe, for instance, can posit the existence of a multiverse containing every possible state their universe could be in, and a megaverse allowing for looser laws of physics, and a gigaverse allowing for even fewer restrictions, but the limit of this application must be at the omniverse if they wish to stay within the concept of "things that are real". Thus, alternate omniverses in each others' relative Paradox Space contain things that cannot be mapped from one sense of "reality" to another.

The Omniverse exists in the surrounding emptiness known as The Outside, a void of virtual nothingness. Whatever may lie outside of these concepts is simply referred to as Beyond, one of the many iterations contained by Transcendentem.

Cisverse
The term Omniverse was first used by CIS Productions' stories such as LOTM: Sword of Kings that was used to replace the common "Multi-Universe" used by the fandom wiki for a decade now. Its size helped in the creation of other fan omniverses like
 * Lynenta Omniverse
 * Nezperdian Omniverse
 * Witris Omniverse