head-to-head vs high noon

head-to-head

adj

  • Direct, one-to-one. 

adv

  • Directly, one-to-one. 

  • Facing one another. 

high noon

noun

  • A time, set out in advance, at which an important decision is to be made or a nemesis is to be confronted 

  • Exactly noon; midday (when the sun is at its highest). 

  • The zenith or apex of one's life or of a certain activity or era. 

How often have the words head-to-head and high noon occurred in a corpus of books? (source: Google Ngram Viewer )