axe vs cast iron

axe

noun
  • A tool for felling trees or chopping wood etc. consisting of a heavy head flattened to a blade on one side, and a handle attached to it. 

  • A position, interest, or reason in buying and selling stock, often with ulterior motives. 

  • An ancient weapon consisting of a head that has one or two blades and a long handle. 

  • A dismissal or rejection. 

  • A drastic reduction or cutback. 

  • A gigging musician's particular instrument, especially a guitar in rock music or a saxophone in jazz. 

verb
  • To lay off, terminate or drastically reduce, especially in a rough or ruthless manner; to cancel. 

  • To furnish with an axle. 

  • To fell or chop with an axe. 

cast iron

noun
  • A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould. 

adj
  • Inflexible or without exception. 

  • Made of cast iron. 

  • Durable; tough; resilient. 

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