interpreting vs nod

interpreting

noun
  • Synonym of interpretation (an act of interpreting or explaining what is obscure) 

  • Synonym of interpretation (the discipline or study of translating one spoken or signed language into another) 

nod

noun
  • A reference or allusion to something. 

  • A nomination. 

  • An instance of inclining the head up and down, as to indicate agreement, or as a cursory greeting. 

  • Approval. 

verb
  • To signify by a nod. 

  • To incline the head up and down, as to indicate agreement. 

  • To allude to something. 

  • To sway, move up and down. 

  • To make a mistake by being temporarily inattentive or tired 

  • To briefly incline the head downwards as a cursory greeting. 

  • To fall asleep while under the influence of opiates. 

  • To gradually fall asleep. 

  • To head; to strike the ball with one's head. 

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