business vs undertaking

business

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

  • 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. 

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

  • A specific commercial enterprise or establishment. 

  • 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. 

undertaking

noun
  • The business of an undertaker, or the management of funerals. 

  • A promise or pledge; a guarantee. 

  • That which is undertaken; any business, work, or project which a person engages in, or attempts to perform; an enterprise. 

  • The act of one who undertakes (in either sense). 

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