cave in vs win

cave in

verb
  • To collapse inward or downward. 

  • To relent; to grant approval against one's initial will. 

noun
  • The act of relenting. 

  • The location where something has caved in. 

  • The act of something collapsing or caving in. 

win

verb
  • To defeat or surpass someone or something. 

  • To obtain (someone) by wooing; to make an ally or friend of (frequently with over). 

  • To triumph or achieve victory in (a game, a war, etc.). 

  • To achieve victory. 

  • To have power, coercion or control. 

  • To reach some destination or object, despite difficulty or toil (now usually intransitive, with preposition or locative adverb). 

  • To obtain (something desired). 

  • To cause a victory for someone. 

  • To extract (ore, coal, etc.). 

  • To dry by exposure to the wind. 

  • To gain (a prize) by succeeding in competition or contest. 

noun
  • A feat carried out successfully; a victorious achievement. 

  • An individual victory. 

  • Pleasure; joy; delight. 

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