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definitions

metaverse

noun
  1. a 3D virtual world, esp in an online role-playing game
  2. 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