nonillion vs trillion

nonillion

num
  • 10³⁰. 

  • 10⁵⁴. 

noun
  • An unspecified very large number. 

trillion

num
  • A million million: 1 followed by twelve zeros, 10¹². 

noun
  • A statistic formed by a player playing some number of minutes, but recording no stats. 

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