Definition of responsibility noun from the Oxford Advanced American Dictionary

      

    responsibility

     noun
    noun
    NAmE//rɪˌspɑnsəˈbɪlət̮i//
     
    (pl. responsibilities)
     
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  1. 1 [uncountable, countable] a duty to deal with or take care of someone or something, so that it is your fault if something goes wrong responsibility (for something) We are recruiting a sales manager with responsibility for the European market. responsibility (for doing something) They have responsibility for ensuring that the rules are enforced. The responsibility for doing this rests with the department managers. responsibility (to do something) It is their responsibility to ensure that the rules are enforced. parental rights and responsibilities to take/assume overall responsibility for personnel I don't feel ready to take on new responsibilities. to be in a position of responsibility I did it on my own responsibility (= without being told to and being willing to take the blame if it had gone wrong). see also corporate responsibility
  2. 2 [uncountable] responsibility (for something) blame for something bad that has happened The bank refuses to accept responsibility for the mistake. Nobody has claimed responsibility for the bombing. We must all bear some responsibility for what happened.
  3. 3[uncountable, countable] a duty to help or take care of someone because of your job, position, etc. responsibility (to/toward somebody) She feels a strong sense of responsibility toward her employees. responsibility (to do something) I think we have a moral responsibility to help these countries.
See the Oxford Advanced Learner's Dictionary entry: responsibility