Definitions of responsible
to be responsible for someone, something or doing something to be in charge of and to have authority over someone or something and to be liable or accountable for that person or thing
They can be held legally responsible for damages arising from defective products.
to be responsible to someone or something if you are responsible to someone or something then that person or thing is in charge of you or has the right to question or control your actions in some way
The Chief Executive Officer is responsible to the board of directors.