acknowledgment vs know

acknowledgment

noun
  • The act of acknowledging 

  • The act of a person admitting a child as their own. 

  • A response (ACK) sent by a receiver to indicate successful receipt of a transmission (See Wikipedia article on transmission). 

  • A recognition as genuine or valid; an avowing or admission in legal form. 

  • A reward or other expression or token of gratitude. 

  • The act of recognizing in a particular character or relationship; recognition of existence, authority, truth, or genuineness. 

  • A formal statement or document recognizing the fulfillment or execution of a legal requirement or procedure. 

  • An expression of gratitude for a benefit or an obligation. 

  • A message from the addressee informing the originator that the originator's communication has been received and understood. 

know

noun
  • Knowledge; the state of knowing. 

  • Knowledge; the state of knowing; now confined to the fixed phrase ‘in the know’ 

verb
  • To perceive the truth or factuality of; to be certain of or that. 

  • To experience. 

  • To understand or have a grasp of through experience or study. 

  • To be or become aware or cognizant. 

  • To be able to play or perform (a song or other piece of music). 

  • To be acquainted or familiar with; to have encountered. 

  • To be aware of; to be cognizant of. 

  • To recognize as the same (as someone or something previously encountered) after an absence or change. 

  • To have knowledge; to have information, be informed. 

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