breastbone vs chest

breastbone

noun
  • The central narrow bone in the front of the chest, connecting the collarbone and the top ribs. 

chest

noun
  • The portion of the front of the human body from the base of the neck to the top of the abdomen; the thorax. Also the analogous area in other animals. 

  • A hit or blow made with one's chest. 

  • A chest of drawers. 

  • A box, now usually a large strong box with a secure convex lid. 

  • The place in which public money is kept; a treasury. 

  • Debate; quarrel; strife; enmity. 

verb
  • To hit with one's chest (front of one's body) 

  • To deposit in a chest. 

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