charcoal vs turbo

charcoal

noun
  • A very dark gray colour. 

  • impure carbon obtained by destructive distillation of wood or other organic matter, that is, heating it in the absence of oxygen. 

  • A stick of black carbon material used for drawing. 

  • A drawing made with charcoal. 

verb
  • To cook over charcoal. 

  • To draw with charcoal. 

adj
  • Made of charcoal. 

  • Of a dark gray colour. 

turbo

noun
  • A turban shell. 

  • a turbine 

  • Autofire. 

verb
  • To autofire. 

adj
  • Very, super, etc.; usually relating to a qualitative value (as opposed to quantitative). 

  • Causing or relating to increased speed. 

  • With rapidly-increasing blind levels. 

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