1 : the state of being legally obliged and responsible
2 : work that you are obliged to perform for moral or legal reasons
3 : the proper sphere or extent of your activities
4 : a personal relation in which one is indebted for a service or favor
5 : 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
6 : the state of being obligated to do or pay something
