responsible >> rɪˈspɒnsɪb(ə)l
Definition: [adjective] having an obligation to do something, or having control over or care for someone, as part of one's job or role.
Example: the cabinet minister responsible for Education
Definition: [adjective] being the primary cause of something and so able to be blamed or credited for it.
Example: Gooch was responsible for 198 of his side's 542 runs
Definition: [adjective] (of a job or position) involving important duties, independent decision-making, or control over others.
Example: she had risen rapidly to a high and responsible position in the civil service