noun (n)

• (baseball) playing the position of pitcher on a baseball team(noun.act)

  source: wordnet30
• abrupt up-and-down motion (as caused by a ship or other conveyance)(noun.act)

  Example:
  The pitching and tossing was quite exciting.
  

  Synonym:
  lurch, pitch
  

  source: wordnet30
• The act of throwing or casting; a cast; a pitch; as, wild pitching in baseball.(noun)

  source: webster1913