push out vs topple

push out

verb
  • To force (someone) to leave a group. 

  • To extrude. 

noun
  • In nine ball pool, an optional shot after a legal break shot where a player is allowed to hit any ball first, or not any, as well as not hit a rail, and the opponent can choose who shoots the next shot. 

topple

verb
  • To overthrow something. 

  • To overturn 

  • To totter and fall, or to lean as if about to do so. 

  • To push or throw over 

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