pinpoint vs revolve around

pinpoint

adj
  • Extremely precise or specific, especially regarding location. 

verb
  • To identify or locate (someone or something) precisely or with great accuracy. 

noun
  • The point of a pin. 

  • Something infinitesimal; a tiny point. 

revolve around

verb
  • To be connected with; to concern. 

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