closing down vs folding

closing down

folding

noun
  • the deformation of the Earth's crust in response to slow lateral compression. 

  • Paper money, as opposed to coins. 

  • The keeping of sheep in enclosures on arable land, etc. 

  • Code folding: a source code display technique that can hide the contents of methods, classes, etc. for easier navigation. 

  • The action of folding; a fold. 

adj
  • Designed to fold; as a folding bed, a folding bicycle, a folding chair, etc. 

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