conceal vs ooze

conceal

verb
  • To hide something from view or from public knowledge, to try to keep something secret. 

ooze

verb
  • To be secreted or slowly leak. 

  • To give off a strong sense of (something); to exude. 

noun
  • A piece of soft, wet, pliable ground. 

  • Tanning liquor, an aqueous extract of vegetable matter (tanbark, sumac, etc.) in a tanning vat used to tan leather. 

  • Soft mud, slime, or shells especially in the bed of a river or estuary. 

  • A pelagic marine sediment containing a significant amount of the microscopic remains of either calcareous or siliceous planktonic debris organisms. 

  • An oozing, gentle flowing, or seepage, as of water through sand or earth. 

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