level set vs map out

level set

verb
  • To establish a baseline of mutual understanding 

noun
  • 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. 

  • A state of mutual understanding among parties 

map out

verb
  • To make explicit; to explain in detail. 

  • To create a map of an area. 

  • To organise a plan; to analyze a situation; to figure out a problem. 

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