The "Xenaverse" is the official nickname for the universe (and larger multiverse) in which the events of Xena: Warrior Princess take place. The name was given in the official companion to the series, Xena: Warrior Princess: The Official Guide to the Xenaverse.
Hercules?[]
Due to the Xena-centric name, there are a number of fans who don't include events from Hercules: The Legendary Journeys or Young Hercules as Xenaverse-set stories. However, because of the Xena: Warrior Princess being a spin-off of Hercules: The Legendary Journeys franchise, most fans (and this wiki) consider them all to take place in the same continuity. The Dictionary of Fiction attempted to sidestep this issue by referring to their world as the "Herc-Xenaverse."