having job / duty
1 ~ (for sb/sth) | ~ (for doing sth) having the job or duty of doing sth or taking care of sb/sth, so that you may be blamed if sth goes wrong:
Mike is responsible for designing the entire project. * Even where parents no longer live together, they each continue to be responsible for their children.
2 ~ (for sth) being able to be blamed for sth:
Who's responsible for this mess? * Everything will be done to bring those responsible to justice. * He is mentally ill and cannot be held responsible for his actions.
3 ~ (for sth) being the cause of sth:
Cigarette smoking is responsible for about 90% of deaths from lung cancer.
to sb in authority
4 ~ to sb/sth to have to report to sb/sth with authority or in a higher position and explain to them what you have done:
The Council of Ministers is responsible to the Assembly.
5 (of people or their actions or behaviour) that you can trust and rely on:
Clare has a mature and responsible attitude to work.
6 [usuallybeforenoun] needing sb who can be trusted and relied on; involving important duties:
a responsible job / position
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