immunity vs shelter

immunity

noun
  • A resistance to a specific thing. 

  • An exemption from specified duties, such as payments or services. 

  • An exemption from penance. 

  • An exemption given to a player from losing or being withdrawn from play. 

  • An exemption from prosecution. 

  • Protective resistance against disease. 

shelter

noun
  • A refuge, haven or other cover or protection from something. 

  • An institution that provides temporary housing for homeless people, battered women, etc. 

verb
  • To take cover. 

  • To provide cover from damage or harassment; to shield; to protect. 

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