leading vs main

leading

adj
  • Ranking first. 

  • Providing guidance or direction. 

  • Occurring in advance; preceding. 

noun
  • Vertical space added between lines; line spacing. 

  • An act by which one is led or guided. 

main

adj
  • Of chief or leading importance; prime, principal. 

  • Big; angry. 

  • Chief, most important, or principal in extent, size, or strength; consisting of the largest part. 

  • Belonging to or connected with the principal mast in a vessel. 

verb
  • To mainly play a specific character or side, or with specific equipment, during a game. 

adv
  • Exceedingly, extremely, greatly, mightily, very, very much. 

noun
  • That which is chief or principal; the chief or main portion; the bulk, the greater part, gross. 

  • The primary character that one plays in a video game in which one can play more than one character. 

  • The high seas. 

  • A large cable or pipe providing utility service to an area or a building, such as a water main or electric main. 

  • A banker's shovel for coins. 

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