Definition of Responsibility

Noun: responsibility  ri,spón-su'bi-li-tee

1. The social force that binds you to the courses of action demanded by that force
   "every right implies a responsibility; every opportunity, an obligation; every possession, a duty";
   - duty, obligation
    
2. The proper sphere or extent of your activities
   "it was his responsibility to take care of himself";
   - province
    
3. A form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct
   "he holds a position of great responsibility";
   - responsibleness
    
4. The topic that a person, committee, or piece of research is expected to deal with or has authority to deal with
   "they set up a group with a responsibility to suggest ways for strengthening family life";
   - remit, brief

See also:
responses
responsible