noun (n)

• a large indefinite number(noun.quantity)

  Example:
  A multitude of TV antennas.
  

  Synonym:
  battalion, large number, myriad, pack, plurality
  

  source: wordnet30
• a large gathering of people(noun.group)

  Synonym:
  concourse, throng
  

  source: wordnet30
• the common people generally(noun.group)

  Synonym:
  hoi polloi, mass, masses, people, the great unwashed
  

  source: wordnet30
• A great number of persons collected together; a numerous collection of persons; a crowd; an assembly.(noun)

  source: webster1913