revolve around vs spotlight

revolve around

verb
  • To be connected with; to concern. 

spotlight

verb
  • To draw attention to. 

  • To illuminate with a spotlight. 

  • Synonym of jacklight (“to use a spotlight in hunting animals”) 

noun
  • The center of attention; the highlight or most important part. 

  • A bright, directional light or lamp, especially one used to illuminate the focus or center of attention on a stage. 

  • The circle of light shed by a spotlight. 

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