refuge vs threat

refuge

verb
  • To return to a place of shelter. 

noun
  • A state of safety, protection or shelter. 

  • A refuge island. 

  • An expedient to secure protection or defence. 

  • A place providing safety, protection or shelter. 

  • Something or someone turned to for safety or assistance; a recourse or resort. 

threat

verb
  • To press; urge; compel. 

  • To use threats; act or speak menacingly; threaten. 

noun
  • A person or object that is regarded as a danger; a menace. 

  • An indication of potential or imminent danger. 

  • An expression of intent to injure or punish another. 

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