know vs lesson

know

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

  • 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. 

noun
  • Knowledge; the state of knowing. 

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

lesson

verb
  • To give a lesson to; to teach. 

noun
  • A learning task assigned to a student; homework. 

  • A severe lecture; reproof; rebuke; warning. 

  • A section of learning or teaching into which a wider learning content is divided. 

  • A section of the Bible or other religious text read as part of a divine service. 

  • Something learned or to be learned. 

  • An exercise; a composition serving an educational purpose; a study. 

  • Something that serves as a warning or encouragement. 

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