coal vs jet

coal

noun
  • A glowing or charred piece of coal, wood, or other solid fuel. 

  • A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof, as a fuel commodity ready to buy and burn. 

  • A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel. 

  • A piece of coal used for burning (this use is less common in American English) 

  • charcoal. 

verb
  • To supply with coal. 

  • To take on a supply of coal (usually of steam ships). 

  • To burn to charcoal; to char. 

  • To mark or delineate with charcoal. 

  • To be converted to charcoal. 

jet

noun
  • The colour of jet coal, deep grey. 

  • A collimated stream, spurt or flow of liquid or gas from a pressurized container, an engine, etc. 

  • A type of airplane using jet engines rather than propellers. 

  • A turbine. 

  • A rocket engine. 

  • A hard, black form of coal, sometimes used in jewellery. 

  • A part of a carburetor that controls the amount of fuel mixed with the air. 

  • A narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon. 

  • A spout or nozzle for creating a jet of fluid. 

verb
  • To shoot forward or out; to project; to jut out. 

  • To travel on a jet aircraft or otherwise by jet propulsion 

  • To move (running, walking etc.) rapidly around 

  • To leave; depart. 

  • To spray with liquid from a container. 

  • To jerk; to jolt; to be shaken. 

  • To spray out of a container. 

  • To adjust the fuel to air ratio of a carburetor; to install or adjust a carburetor jet 

  • To strut; to walk with a lofty or haughty gait; to be insolent; to obtrude. 

adj
  • Propelled by turbine engines. 

  • Very dark black in colour. 

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