concern vs responsibility

concern

noun
  • The placement of interest or worry on a subject. 

  • The expression of solicitude, anxiety, or compassion toward a thing or person. 

  • That which affects one’s welfare or happiness. A matter of interest to someone. 

  • A worry; a sense that something may be wrong; an identification of a possible problem. 

  • A business, firm or enterprise; a company. 

  • Any set of information that affects the code of a computer program. 

verb
  • To engage by feeling or sentiment; to interest. 

  • To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to. 

  • To make somebody worried. 

responsibility

noun
  • The state of being responsible, accountable, or answerable. 

  • A duty, obligation or liability for which someone is held accountable. 

  • The obligation to carry forward an assigned task to a successful conclusion. With responsibility goes authority to direct and take the necessary action to ensure success. 

  • The obligation for the proper custody, care, and safekeeping of property or funds entrusted to the possession or supervision of an individual. 

  • The state of being liable, culpable, or responsible for something in particular. 

How often have the words concern and responsibility occurred in a corpus of books? (source: Google Ngram Viewer )