concern vs consideration

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. 

consideration

noun
  • Importance, claim to notice, regard. 

  • Something considered as a reason or ground for a (possible) decision. 

  • The tendency to consider others. 

  • The thought process of considering, of taking multiple or specified factors into account (with of being the main corresponding adposition). 

  • A payment or other recompense for something done. 

  • A matter of inducement for something promised; something valuable given as recompense for a promise, which causes the promise to become binding as a contract. 

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