blame for a particular act or something that has happened
The group claimed responsibility for a suicide bombing at the French embassy.
having authority over someone or something with an obligation to make sure that certain actions are taken
The Trust has a particular responsibility to ensure that its beneficiaries are served as well as possible.
something that it is your obligation to take care of
"It takes a special type of person to be a chartered accountant," said Mr Putey, "and the job carries a lot of responsibility."