English to English

noun (n)

• complex system of paths or tunnels in which it is easy to get lost(noun.artifact)

  Synonym:
  maze
  

  source: wordnet30
• a complex system of interconnecting cavities; concerned with hearing and equilibrium(noun.body)

  Synonym:
  inner ear, internal ear
  

  source: wordnet30
• An edifice or place full of intricate passageways which render it difficult to find the way from the interior to the entrance; as, the Egyptian and Cretan labyrinths.(noun)

  source: webster1913