level set vs line up

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 

line up

verb
  • To agree or correspond. 

  • to put in alignment; to put in correct adjustment for smooth running 

  • To start a game in a certain position on the playing field. 

  • To make arrangements for an event. 

  • To support a group or movement. 

  • To put things in a line 

  • To get into a line. 

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