deny vs sign on

deny

verb
  • To assert that something is not true. 

  • To disclaim connection with, responsibility for, etc.; to refuse to acknowledge; to disown; to abjure; to disavow. 

  • To refuse to give or grant something to someone. 

  • To disallow or reject. 

  • To take something away from someone; to deprive of. 

  • To prevent from scoring. 

sign on

verb
  • To begin broadcasting a radio or television signal, usually at the beginning of a broadcasting day and after being off the air for several hours. 

  • To commit oneself, as to a project, a goal, an organization, a cause. 

  • To join something, after signing. 

  • To apply to receive unemployment benefits. 

  • To log on; to start using a computer, radio, etc., or to start talking. 

noun
  • The time of day when a radio or television station begins broadcasting, usually after being off the air for several hours. 

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