business vs concern

business

noun
  • A specific commercial enterprise or establishment. 

  • One's dealings; patronage. 

  • A person's occupation, work, or trade. 

  • The act of defecation, or the excrement itself, particularly that of a non-human animal. 

  • Business class, the class of seating provided by airlines between first class and coach. 

  • A particular situation or activity. 

  • Action carried out with a prop or piece of clothing, usually away from the focus of the scene. 

  • Matters that come before a body for deliberation or action. 

  • The volume or amount of commercial trade. 

  • The management of commercial enterprises, or the study of such management. 

  • The collective noun for a group of ferrets. 

  • Private commercial interests taken collectively. 

  • Any activity or objective needing to be dealt with; especially, one of a financial or legal matter. 

  • matters (e.g sorry business = a funeral) 

  • Something very good; top quality. (possibly from "the bee's knees") 

  • Disruptive shenanigans. 

  • Something involving one personally. 

  • Commercial, industrial, or professional activity. 

adj
  • Of, to, pertaining to or utilized for purposes of conducting trade, commerce, governance, advocacy or other professional purposes. 

  • Professional, businesslike, having concern for good business practice. 

  • Supporting business, conducive to the conduct of business. 

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. 

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