level set vs onus

level set

noun
  • A state of mutual understanding among parties 

  • An event consisting of level setting 

  • The set of values x for which a real-valued function f(x) is equal to a given constant. 

verb
  • To establish a baseline of mutual understanding 

onus

noun
  • Responsibility; burden. 

  • A legal obligation. 

  • Burden of proof, onus probandi. 

  • Stigma. 

  • Blame. 

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