hibachi vs roaster

hibachi

noun
  • A portable brazier, powered by charcoal, used for cooking. 

  • A cooking method and performance art in which the chef grills pieces of food on a hot metal griddle in front of the guests; teppanyaki. This terminology is virtually unknown in Japan. 

  • The griddle used in such cuisine; teppan. 

roaster

noun
  • A kitchen utensil used for roasting. 

  • A hot Jupiter. 

  • An objectionable person; somebody making a fool of themselves. 

  • A chicken, pig, etc. suitable for roasting. 

  • One who roasts or banters, especially as a comedy routine. 

  • One who roasts food. 

  • A furnace used in making ball soda. 

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