overflow vs tsunami

overflow

noun
  • The spillage resultant from overflow; excess. 

  • The situation where a value exceeds the available numeric range. 

  • Outlet for escape of excess material. 

verb
  • To flow over the edge of a container. 

  • To exceed limits or capacity. 

  • To (cause to) exceed the available numeric range. 

  • To cover with a liquid, literally or figuratively. 

  • To flow over the brim of (a container). 

  • To be superabundant; to abound. 

  • To cause an overflow. 

tsunami

noun
  • A large and generally unstoppable surge. 

  • A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption. Tsunami are usually a series of waves, or wave train. 

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