immune vs tied

immune

verb
  • To make immune. 

adj
  • Exempt; not subject to. 

  • Not vulnerable. 

  • Of or pertaining to the immune system. 

  • Protected by inoculation, or due to innate resistance to pathogens. 

noun
  • A person who is not susceptible to infection by a particular disease 

tied

adj
  • Conditional on other agreements being upheld. 

  • Restricted. 

  • a cover having a stamp where the postmark cancellation overlaps the stamp. 

  • Having walls that are connected in a few places by a single stone overlapping from one wall to another. 

  • Provided for use by an employer for as long as one is employed, often with restrictions on the conditions of use. 

  • Closely connected or associated. 

  • That resulted in a tie. 

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