alcohol-free vs straightedge

alcohol-free

adj
  • Containing no alcohol. 

straightedge

adj
  • Living one's life opposing or eschewing the use of substances such as alcohol, tobacco, and drugs. 

noun
  • A flat, rectangular tool used to draw, cut or check the straightness of straight lines. 

How often have the words alcohol-free and straightedge occurred in a corpus of books? (source: Google Ngram Viewer )