What is the meaning of fullness?

noun

• Completeness over a broad scope.
  • synonyms: comprehensiveness
• The property of a sensation that is rich and pleasing.
  • usage: "the music had a fullness that echoed through the hall"; "the cheap wine had no body, no mellowness"; "he was well aware of the richness of his own appearance"
  • synonyms: mellowness, richness
• The condition of being filled to capacity.
• Greatness of volume.
  • synonyms: voluminosity, voluminousness