Coal vs Lignite

Coal

name
  • An unincorporated community and coal town in Kanawha County, West Virginia, United States. 

  • Four townships in the United States, in Missouri, Ohio (2), and Pennsylvania, listed under Coal Township. 

  • An unincorporated community in Henry County, Missouri, United States, named after early settler Stephen Coale. 

Lignite

name
  • A ghost town in Virginia. 

  • A ghost town in California. 

  • A city and town in North Dakota. 

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