cut out vs sign off

cut out

verb
  • To stop working, to switch off; (of a person on the telephone etc.) to be inaudible, be disconnected. 

  • To take a ship out of a harbor etc. by getting between her and the shore. 

  • To intercept. 

  • To arrange or prepare. 

  • To remove, omit. 

  • Used other than figuratively or idiomatically: see cut, out. To separate into parts with or as if with a sharp-edged instrument; sever. 

  • To refrain from (doing something, using something etc.), to stop/cease (doing something). 

  • To oust, to replace. 

  • To separate from a herd. 

  • To leave suddenly. 

adj
  • Well suited; appropriate; fit for a particular activity or purpose. 

sign off

verb
  • To log off; to stop using a computer, radio, etc., especially to stop talking. 

  • to give one's official approval to something for which it is needed 

  • To cease broadcasting a radio or television signal, usually at the end of a broadcasting day. 

noun
  • The closing of a radio or television station's studios and cessation of the broadcasting signal, usually overnight. 

How often have the words cut out and sign off occurred in a corpus of books? (source: Google Ngram Viewer )