castle vs pure

castle

verb
  • To bowl a batsman with a full-length ball or yorker such that the stumps are knocked over. 

  • To house or keep in a castle. 

  • To create a similar defensive position in Japanese chess through several moves. 

  • To protect or separate in a similar way. 

  • To move the king 2 squares right or left and, in the same turn, the nearest rook to the far side of the king. The move now has special rules: the king cannot be in, go through, or end in check; the squares between the king and rook must be vacant; and neither piece may have been moved before castling. 

noun
  • An instance of castling. 

  • The wicket. 

  • A defense structure in shogi formed by defensive pieces surrounding the king. 

  • A large residential building or compound that is fortified and contains many defences; in previous ages often inhabited by a nobleman or king. Also, a house or mansion with some of the architectural features of medieval castles. 

  • A rook; a chess piece shaped like a castle tower. 

pure

verb
  • to hit (the ball) completely cleanly and accurately 

adj
  • Of a single, simple sound or tone; said of some vowels and the unaspirated consonants. 

  • Free of foreign material or pollutants. 

  • Free of flaws or imperfections; unsullied. 

  • Done for its own sake instead of serving another branch of science. 

  • Mere; that and that only. 

  • Without harmonics or overtones; not harsh or discordant. 

  • A lot of. 

  • Free of immoral behavior or qualities; clean. 

adv
  • to a great extent or degree; extremely; exceedingly. 

noun
  • One who, or that which, is pure. 

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