caulk vs unblock

caulk

verb
  • To apply caulking to joints, cracks, or a juncture of different materials. 

  • To drive oakum into the seams of a ship's wooden deck or hull to make it watertight. 

  • To copulate. 

noun
  • A composition of vehicle and pigment used at ambient temperatures for filling/sealing joints or junctures, that remains elastic for an extended period of time after application. 

  • Caulking. 

unblock

verb
  • To remove or clear a block or obstruction from. 

  • In whist, to throw away a high card so as not to interrupt one's partner's long suit. 

  • To free or make available. 

  • To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked). 

noun
  • The removal of a block or blockage. 

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