convert vs puzzle

convert

noun
  • The equivalent of a conversion in rugby 

  • A person who has converted to a religion. 

  • A person who is now in favour of something that he or she previously opposed or disliked. 

verb
  • To express (a quantity) in alternative units. 

  • To change (something) from one use, function, or purpose to another. 

  • To score extra points after (a try) by completing a conversion. 

  • To appropriate wrongfully or unlawfully; to commit the common law tort of conversion. 

  • To induce (someone) to adopt a particular religion, faith, ideology or belief (see also sense 11). 

  • To score a spare. 

  • To perform the action that an online advertisement is intended to induce; to reach the point of conversion. 

  • To undergo a conversion of religion, faith or belief (see also sense 3). 

  • To transform a material or positional advantage into a win. 

  • To become converted. 

  • To score (especially a penalty kick). 

  • To change (one proposition) into another, so that what was the subject of the first becomes the predicate of the second. 

  • To express (a unit of measurement) in terms of another; to furnish a mathematical formula by which a quantity, expressed in the former unit, may be given in the latter. 

  • To increase one's individual score, especially from 50 runs (a fifty) to 100 runs (a century), or from a century to a double or triple century. 

  • To transform or change (something) into another form, substance, state, or product. 

  • To exchange for something of equal value. 

puzzle

noun
  • A game for one or more people that is more or less difficult to work out or complete. 

  • Anything that is difficult to understand or make sense of. 

  • A riddle. 

  • The state of being puzzled; perplexity. 

  • A jigsaw puzzle. 

  • A crossword puzzle. 

verb
  • To think long and carefully, in bewilderment. 

  • To perplex, confuse, or mystify; to cause (someone) to be faced with a mystery, without answers or an explanation. 

  • To make intricate; to entangle. 

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