know vs leak

know

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

  • Knowledge; the state of knowing. 

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. 

leak

noun
  • A divulgation, or disclosure, of information previously held secret. 

  • A crack, crevice, fissure, or hole which admits water or other fluid, or lets it escape. 

  • The entrance or escape of a fluid through a crack, fissure, or other aperture. 

  • The gradual loss of a system resource caused by failure to deallocate previously reserved portions. 

  • The person through whom such divulgation, or disclosure, occurs. 

  • A loss of electricity through imperfect insulation, or the point where it occurs. 

  • An act of urination. 

verb
  • To allow fluid or gas to pass through an opening that should be sealed. 

  • To disclose secret information surreptitiously or anonymously. 

  • (of a fluid or gas) To pass through an opening that should be sealed. 

  • To pass through when it would normally or preferably be blocked. 

  • To urinate. 

  • To bleed. 

  • To allow anything through that would normally or preferably be blocked. 

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