castling vs conversion

castling

noun
  • A miniature cast or mould. 

  • One that is cast. 

  • The act of constructing a defense structure in Japanese chess in which the king (玉) is positioned in a certain way so that it is protected by pawns (歩) and silver general(s) (銀) and/or gold general(s) (金) often with an additional knight (桂) and lance (香車). 

  • A move in which the king moves two squares towards a rook, and the rook moves to the other side of the king; the action of the verb to castle. 

conversion

noun
  • Changing a miniature figure into another character, usually by mixing different parts, or molding the model's parts, or doing both. 

  • The act of converting something or someone. 

  • Under the common law, the tort of the taking of someone's personal property with intent to permanently deprive them of it, or damaging property to the extent that the owner is deprived of the utility of that property, thus making the tortfeasor liable for the entire value of the property. 

  • A free kick, after scoring a try, worth two points. 

  • An extra point (or two) scored by kicking a field goal or carrying the ball into the end zone after scoring a touchdown. 

  • A chemical reaction wherein a substrate is transformed into a product. 

  • The process whereby a new word is created without changing the form, often by allowing the word to function as a new part of speech. 

  • A change or reduction of the form or value of a proposition. 

  • A software product converted from one platform to another. 

  • An online advertising performance metric representing a visitor performing whatever the intended result of an ad is defined to be. 

  • The act of interchanging the terms of a proposition, as by putting the subject in the place of the predicate, or vice versa. 

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