flue vs upcast

flue

noun
  • An enclosed passageway in which to direct air or other gaseous current along. 

  • A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace). 

  • In an organ flue pipe, the opening between the lower lip and the languet. 

upcast

noun
  • A current of air passed along such a shaft. 

  • A cast; a throw. 

  • A taunt; a reproach. 

  • A cast from subtype to supertype. 

  • An upset, as from a carriage. 

  • The ventilating shaft of a mine out of which the air passes after having circulated through the mine. 

  • A message transmitted via upcasting. 

adj
  • Cast up; thrown upward. 

verb
  • To taunt; to reproach; to upbraid. 

  • To cast from subtype to supertype. 

  • To broadcast a message or data to aircraft or satellites, especially via radio waves; as opposed to uplinking to a specific satellite or aircraft 

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