Universe

The Universe is the smallest official -verse out there. Universes will always have 3 spatial dimensions and 1 time dimension. If the Multiverse theory is correct, the Universe is contained by the Multiverse, and if the Simulation theory is correct, it is contained by the Metaverse.

Formation
Most Universes are formed from a Big Bang, where an infinitely small, infinitely dense point of matter suddenly expands outwards, soon creating a new universe. Some Universes can be formed differently, such as 2 universes colliding, producing a new universe afterwards either from merging or fracturing of the two.

Structure
Universes are composed of mainly Superclusters joined together in huge cosmic "webs". There are usually also many voids between the superclusters, although some universes are so dense that these voids do not appear. The number of superclusters in a Universe also varies a lot.