concern vs firm

concern

noun
  • A business, firm or enterprise; a company. 

  • 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. 

  • 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. 

firm

noun
  • A business enterprise, however organized. 

  • A criminal gang, especially based around football hooliganism. 

  • A business partnership; the name under which it trades. 

verb
  • To become firm; stabilise. 

  • To make firm or strong; fix securely. 

  • To improve after decline. 

  • To make compact or resistant to pressure; solidify. 

  • To shorten (of betting odds). 

  • To select (a higher education institution) as one's preferred choice, so as to enrol automatically if one's grades match the conditional offer. 

adj
  • Durable, rigid (material state) 

  • Fixed (in opinion). 

  • Insistent upon something, not accepting dissent. 

  • Steadfast, secure, solid (in position) 

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