Might we think of a new word to describe a "sub-universe", like the one containing all our galaxies? This would allow for "universe" to be the thing that contai

Might we think of a new word to describe a "sub-universe", like the one containing all our galaxies? This would allow for "universe" to be the thing that contains many or infinite sub-universes? Okay.. I'm done, I just confused the hell out of my brain.