discard vs throw away

discard

verb
  • To make a discard; to throw out a card. 

  • To throw away, to reject. 

  • To dismiss from employment, confidence, or favour; to discharge. 

noun
  • A temporary variable used to receive a value of no importance and unable to be read later. 

  • Anything discarded. 

  • A discarded playing card in a card game. 

throw away

verb
  • To discard (trash, garbage, or the like), to toss out, to put in the trash, to dispose of. 

  • To intentionally throw an incomplete pass. 

  • To waste, to squander. 

  • To give lightly, in an offhand manner. 

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