arrow vs nerve gas

arrow

noun
  • A projectile consisting of a shaft, a point and a tail with stabilizing fins that is shot from a bow. 

  • A directed edge. 

  • A dart. 

  • The inflorescence or tassel of a mature sugar cane plant. 

  • A sign or symbol used to indicate a direction (e.g. →). 

  • The -> symbol, which has specific meanings in various programming languages. 

verb
  • To move swiftly and directly (like an arrow). 

  • To let fly swiftly and directly. 

  • To develop an inflorescence. 

  • To navigate using the arrow keys. 

nerve gas

noun
  • A toxic chemical compound and banned weapon of mass destruction which, when inhaled or ingested, impairs nervous system functions, typically causing extreme physical distress and death by asphyxiation. 

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