noun (n)

• the state of being plural(noun.state)

  Example:
  To mark plurality, one language may add an extra syllable to the word whereas another may simply change the vowel in the existing final syllable.
  

  source: wordnet30
• a large indefinite number(noun.quantity)

  Example:
  A plurality of religions.
  

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

  source: wordnet30
• (in an election with more than 2 options) the number of votes for the candidate or party receiving the greatest number (but less that half of the votes)(noun.quantity)

  Synonym:
  relative majority
  

  source: wordnet30
• The state of being plural, or consisting of more than one; a number consisting of two or more of the same kind; as, a plurality of worlds; the plurality of a verb.(noun)

  source: webster1913