metaverse
noun
a 3D virtual world, esp in an online role-playing game
the universe as portrayed in a given work of fiction
Word Origin for metaverse
C20: from meta- + (uni) verse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012