What is the meaning of commitment?

noun

• The trait of sincere and steadfast fixity of purpose.
  • usage: "a man of energy and commitment"
  • synonyms: committedness
• The act of binding yourself (intellectually or emotionally) to a course of action.
  • usage: "his long commitment to public service"; "they felt no loyalty to a losing team"
  • synonyms: allegiance, loyalty, dedication
• An engagement by contract involving financial obligation.
  • usage: "his business commitments took him to London"
• A message that makes a pledge.
  • synonyms: dedication
• The official act of consigning a person to confinement (as in a prison or mental hospital. ).
  • synonyms: committal, consignment