bring down vs flatten

bring down

verb
  • To cause to fall down, e.g. in an accident. 

  • To reduce. 

  • To make something, especially something flying, fall to the ground, usually by firing a weapon of some kind. 

  • To make someone feel bad emotionally. 

  • To make a ruler lose their position of power. 

  • To cause an opponent to fall after a tackle. 

  • To humble. 

flatten

verb
  • To be knocked down or laid low. 

  • To reduce (a data structure) to one that has fewer dimensions, e.g. a 2×2 array into a list of four elements. 

  • To press one's body tightly against a surface, such as a wall or floor, especially in order to avoid being seen or harmed. 

  • To knock down or lay low. 

  • To make something flat or flatter. 

  • To lower by a semitone. 

  • To combine (separate layers) into a single image. 

  • To become flat or flatter; to plateau. 

  • To make vapid or insipid; to render stale. 

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