backshore vs beach

backshore

noun
  • An upper shore zone above high-tide. 

beach

noun
  • A horizontal strip of land, usually sandy, adjoining water. 

  • Synonym of gravel trap 

  • The loose pebbles of the seashore, especially worn by waves; shingle. 

  • A dry, dusty pitch or situation, as though playing on sand. 

  • The shore of a body of water, especially when sandy or pebbly. 

verb
  • To run aground on a beach. 

  • To run (something) aground on a beach. 

  • To run into an obstacle or rough or soft ground, so that the floor of the vehicle rests on the ground and the wheels cannot gain traction. 

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