acknowledge vs discard

acknowledge

verb
  • To own as genuine or valid; to assent to (a legal instrument) to give it validity; to avow or admit in legal form. 

  • To own or recognize in a particular quality, character or relationship; to admit the claims or authority of; to give recognition to. 

  • To be grateful of (e.g. a benefit or a favour) 

  • To admit the knowledge of; to recognize as a fact or truth; to declare one's belief in 

  • To report (the receipt of a message to its sender). 

discard

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

  • To throw away, to reject. 

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

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. 

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