decider vs run-in

decider

noun
  • An event or action which decides the outcome of a contested matter. 

  • A person, divinity, or authoritative text which decides. 

  • A Turing machine that halts regardless of its input. 

run-in

noun
  • The end-phase of a competition. 

  • An encounter; a scrape or brush, especially one involving trouble or difficulty. 

adj
  • (not comparable) Having been run in before or behind previous text. 

  • (sometimes comparable) Having been run in to seat the parts. 

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