noun (n)

• a tie in tennis or table tennis that requires winning two successive points to win the game(noun.state)

  source: wordnet30
• the cardinal number that is the sum of one and one or a numeral representing this number(noun.quantity)

  Synonym:
  2, ii, two
  

  source: wordnet30
• a word used in exclamations of confusion(noun.communication)

  Example:
  The deuce with it.
  

  Synonym:
  devil, dickens
  

  source: wordnet30
• one of the four playing cards in a deck that have two spots(noun.artifact)

  Synonym:
  two
  

  source: wordnet30
• Two; a card or a die with two spots; as, the deuce of hearts.(noun)

  source: webster1913
• The devil; a demon.(noun)

  source: webster1913