fireman vs pitcher

fireman

noun
  • A relief pitcher (reflecting the figurative analogy of rescuing the situation). 

  • A safety inspector in coal mines. 

  • An assistant on any locomotive, whether steam-powered or not. 

  • Someone (especially one who is male) who is skilled in the work of fighting fire. 

  • A person (originally a man) who keeps the fire going underneath a steam boiler (originally, shoveling coal by hand), particularly on a railroad locomotive or steamship. 

pitcher

noun
  • One who pitches anything, as hay, quoits, a ball, etc. 

  • The player who delivers the ball to the batter. 

  • A drug dealer. 

  • The top partner in a homosexual relationship or penetrator in a sexual encounter between two men. 

  • A tubular or cuplike appendage or expansion of the leaves of certain plants. See pitcher plant. 

  • A wide-mouthed, deep vessel for holding liquids, with a spout or protruding lip and a handle; a water jug or jar with a large ear or handle. 

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