The metaverse is a single virtual reality that runs in paralell with the reality, within this reaility you can visit different metaverse worlds that can look and function very differently from each other.
The concept metaverse is not a new concept, but has been around for decades only to recently accelerate in popularity. Many concepts have been created which refer to themselves as metaverse, but they would be in our definition a metaverse world, or the attempt to be one. We have written a complete guide on the metaverse and metaverse worlds which goes deeper in to this topic.