1. Having an obligation to do something, or having control over or care for someone, as part of one's job or role.
2. Having to report to (a superior) and be answerable to them for one's actions.
3. Being the primary cause of something and so able to be blamed or credited for it.
4. (Of a job or position) involving important duties, independent decision-making, or control over others.
Kiran was held responsible for the dispute among the family members.