Primal:Nexus
The place where it all comes together. It is here that Chronos the Time Keeper with the machine Oracle tries to maintain the balance between the power of Order and Chaos in Oblivion. All the realms can be entered through the Nexus.
Also the name of the club where Lewis' band plays. Jen wears a crop-top Nexus t-shirt in the cutscene after the closing credits.