horse chestnut vs tan

horse chestnut

noun
  • The large nutlike seed of these trees. 

  • Any of several tree species of genus Aesculus, especially Aesculus hippocastanum, common in temperate northern hemisphere. 

tan

noun
  • The bark of an oak or other tree from which tannic acid is obtained. 

  • Synonym of picul, particularly in Cantonese contexts. 

  • A yellowish-brown colour. 

  • A twig or small switch. 

  • A darkening of the skin resulting from exposure to sunlight or similar light sources. 

  • An Armenian drink made of yoghurt and water similar to airan and doogh 

adj
  • Yellowish-brown. 

  • Having dark skin as a result of exposure to the sun or an artificial process intended to mimic this effect. 

verb
  • To change an animal hide into leather by soaking it in tannic acid. To work as a tanner. 

  • To kill by gun, to shoot. 

  • To spank or beat. 

  • To change to a tan colour due to exposure to the sun. 

num
  • The second cardinal number two, formerly used in Celtic areas, especially Cumbria and parts of Yorkshire, for counting sheep, and stitches in knitting. 

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