facing vs posterior

facing

adj
  • Positioned so as to face (in a particular direction) 

  • Diverging in the direction of travel. 

noun
  • Fabric applied to a garment edge on the underside. 

  • A powdered substance, such as charcoal or bituminous coal, applied to the face of a mould, or mixed with the sand that forms it, to give a fine smooth surface to the casting. 

  • The movement of soldiers by turning on their heels to the right, left, or about. 

  • The most external portion of exterior siding. 

  • The collar and cuffs of a military coat, commonly of a different colour from the rest of the coat. 

posterior

adj
  • Next to, or facing the main stem or axis. 

  • Following in order or in time. 

  • Relating to or denoting presentation of a fetus in which the rear or caudal end is nearest the cervix and emerges first at birth. 

noun
  • The hinder parts of the body. 

  • The probability that a hypothesis is true (calculated by Bayes' theorem). 

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