Realm

A realm is a dimensional structure that contains planes of existence.

Our reality (material or physical realm) contains all planes of known existence within the 11 dimensions of our omniverse.

Planes are dimensions of existence, and many planes can exist within one dimensional framework divided by instances for example. Sometimes realms and planes can mean the same thing, such as in the Forgotten Realms Universe where there are different material planes, one of which is Realmspace. Within our model, all such material planes can exist within reality (realm 1), and other planes could exist outside reality (realm 2), such as those that contain spirits, gods, devils, and so on.

A verse is a cosmological structure that holds everything in existence. This ranges from a universe to the outerverse.

The hyperverse is a hyper-dimensional extension of reality with an infinite number of dimensions. This is the truth of reality but intangible to those who live in the omniverse.

The difference between the 1st Realm (Reality) and the 2nd Realm is so vast that the 2nd is only beginning to be understood by a Type II civilization and only accessible beyond Type VII.

The metaphysical planes beyond reality are contained in outerverses, and these are inaccessible and indescribable using dimensions. Space and time is boundless here. All existence here is abstract to those who live in the omniverse.

All realms together make up everything. The rest is outside.