dissolve vs kill off

dissolve

verb
  • To destroy, make disappear. 

  • To break the continuity of; to disconnect; to loosen; to undo; to separate. 

  • To terminate a union of multiple members actively, as by disbanding. 

  • To be disintegrated by such immersion. 

  • To disperse, drive apart a group of persons. 

  • To resolve itself as by dissolution. 

  • To disintegrate chemically into a solution by immersion into a liquid or gas. 

  • To liquify, melt into a fluid. 

  • To be melted, changed into a fluid. 

  • To shift from one shot to another by having the former fade out as the latter fades in. 

  • To relax by pleasure; to make powerless. 

  • To annul; to rescind; to discharge or release. 

noun
  • a form of film punctuation in which there is a gradual transition from one scene to the next 

kill off

verb
  • To eliminate, or make extinct. 

  • To take a character out of a television series or other work by purposefully and deliberately having them killed within the plot. 

  • To put an end to. 

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