leak vs seep

leak

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

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

  • To disclose secret information surreptitiously or anonymously. 

  • 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. 

noun
  • 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. 

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

  • 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. 

seep

verb
  • (of a crack etc.) To allow a liquid to pass through, to leak. 

  • To enter or penetrate slowly; to spread or diffuse. 

  • To diminish or wane away slowly. 

  • To ooze or pass slowly through pores or other small openings, and in overly small quantities; said of liquids, etc. 

noun
  • The seeping away of a liquid, etc. 

  • A seafloor vent. 

  • Moisture, liquid, gas, etc. that seeps out; a seepage. 

  • A small spring, pool, or other spot where liquid from the ground (e.g. water, petroleum or tar) has oozed to the surface; a place of seeping. 

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