area of authority vs breadth

area of authority

noun
  • the extent of someone's expertise, authority, activity or knowledge 

breadth

noun
  • Scope or range, especially of knowledge or skill. 

  • The extent or measure of how broad or wide something is. 

  • A style in painting in which details are strictly subordinated to the harmony of the whole composition. 

  • A piece of fabric of standard width. 

  • The length of the longest path between two vertices in a graph. 

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