save vs warn

save

verb
  • To obviate or make unnecessary. 

  • To keep (something) safe; to safeguard. 

  • To spare (somebody) from effort, or from something undesirable. 

  • To redeem or protect someone from eternal damnation. 

  • To catch or deflect (a shot at goal). 

  • To store for future use. 

  • To economize or avoid waste. 

  • To preserve, as a relief pitcher, (a win of another pitcher's on one's team) by defending the lead held when the other pitcher left the game. 

  • To write a file to disk or other storage medium. 

  • To refrain from romantic or (especially in later use) sexual relationships until one is married or is with a suitable partner. 

  • To help (somebody) to survive, or rescue (somebody or something) from harm. 

  • To conserve or prevent the wasting of. 

  • To accumulate money or valuables. 

conj
  • unless; except 

prep
  • Except; with the exception of. 

noun
  • The act, process, or result of saving data to a storage medium. 

  • A saving throw. 

  • A successful attempt by a relief pitcher to preserve the win of another pitcher on one's team. 

  • In various sports, a block that prevents an opponent from scoring. 

  • An instance of preventing (further) harm or difficulty. 

  • A point in a professional wrestling match when one or more wrestlers run to the ring to aid a fellow wrestler who is being beaten. 

  • An action that brings one back out of an awkward situation. 

warn

verb
  • To caution or admonish (someone) against unwise or unacceptable behaviour. 

  • To notify or inform (someone, about something). 

  • To give warning. 

  • To summon (someone) to or inform of a formal meeting or duty. 

  • To advise or order to go or stay away. 

  • To make (someone) aware of impending danger, evil, etc. 

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