elevate vs flatten

elevate

verb
  • To make (something or someone) more worthy or of greater value. 

  • To raise (something) to a higher position. 

  • To direct (the mind, thoughts, etc.) toward more worthy things. 

  • To confer honor or nobility on (someone). 

  • To promote (someone) to a higher rank. 

  • To increase the intensity or degree of (something). 

flatten

verb
  • To make something flat or flatter. 

  • 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 lower by a semitone. 

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

  • To be knocked down or laid low. 

  • To become flat or flatter; to plateau. 

  • To make vapid or insipid; to render stale. 

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