clash vs impact

clash

noun
  • A skirmish, a hostile encounter. 

  • A loud sound, like the crashing together of metal objects. 

  • match; a game between two sides. 

  • An angry argument 

  • Opposition; contradiction; such as between differing or contending interests, views, purposes etc. 

  • Chatter; gossip; idle talk. 

  • A combination of garments that do not look good together, especially because of conflicting colours. 

  • An instance of restarting the game after a "dead ball", where it is dropped between two opposing players, who can fight for possession. 

verb
  • To coincide, to happen at the same time, thereby rendering it impossible to attend all. 

  • To argue angrily. 

  • To chatter or gossip. 

  • To come into violent conflict. 

  • To make a clashing sound. 

  • To fail to look good together; to contrast unattractively; to fail to harmonize. 

  • To face each other in an important game. 

  • To cause to make a clashing sound. 

impact

noun
  • The striking of one body against another; collision. 

  • A significant or strong influence or effect. 

  • A forced impinging. 

  • The force or energy of a collision of two objects. 

verb
  • To stamp or impress onto something. 

  • To collide or strike, the act of impinging. 

  • To significantly or strongly influence or affect; to have an impact on. 

  • To compress; to compact; to press into something or pack together. 

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