A Megaverse is a collection of several different Multiverses, either a finite or infinite amount of them, usually each having different properties and interuniversal laws, such as different cosmic events being possible, such as Big Booms, etc.

A megaverse can be contained by a Gigaverse or a Teraverse, or other -verses in the metric hierarchy, but this eventually leads back up to the Archverse chain.

See Also

Nested Level First Second Third Fourth Fifth Sixth Seventh Eighth Ninth Tenth ... -
Archverse Universe Multiverse Megaverse Gigaverse Teraverse Petaverse Exaverse Zettaverse Yottaverse Xennaverse ... Omniverse