convert vs remain

convert

verb
  • To become converted. 

  • 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 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. 

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. 

remain

verb
  • To continue in a state of being. 

  • To await; to be left to. 

  • To continue unchanged in place, form, or condition, or undiminished in quantity; to abide; to stay; to endure; to last. 

  • To be left after a number or quantity has been subtracted or cut off; to be left as not included or comprised. 

  • To stay after others or other parts have been removed or otherwise disappeared. 

noun
  • That which is left; relic; remainder. 

  • That which is left of a human being after the life is gone; relics; a dead body. 

  • Posthumous works or productions, especially literary works. 

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