1 : the quality of being something that holds you back
2 : the state of being legally obliged and responsible
3 : an obligation to pay money to another party
4 : a form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct
5 : a reproach for some lapse or misdeed
6 : the social force that binds you to the courses of action demanded by that force; every opportunity, an obligation; every possession, a duty-"- John D.Rockefeller Jr
7 : responsibility to someone or for some activity
8 : the proper sphere or extent of your activities