furthest vs leading

furthest

adv
  • To the greatest degree or extent. 

  • To, at or over the greatest distance in space, time or other extent. 

adj
  • Most distant in time, space or degree. 

leading

adj
  • Providing guidance or direction. 

  • Occurring in advance; preceding. 

  • Ranking first. 

noun
  • Vertical space added between lines; line spacing. 

  • An act by which one is led or guided. 

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