plug vs unblock

plug

verb
  • To stop with a plug; to make tight by stopping a hole. 

  • To persist or continue with something. 

  • To ingest a drug rectally 

  • To blatantly mention a particular product or service as if advertising it. 

  • To have sex with, penetrate sexually. 

  • To shoot a bullet into something with a gun. 

noun
  • A promotion (act of promoting) a product (such as a book, film or play) or other thing (concept, etc), for example during an interview or a commercial. 

  • A body of once molten rock that hardened in a volcanic vent. Usually round or oval in shape. 

  • A standard, modular fuselage component that can be added or removed. 

  • An electric socket: wall plug. 

  • Any piece of wood, metal, or other substance used to stop or fill a hole. 

  • A pronged connecting device which fits into a mating socket, especially an electrical one. 

  • A short cylindrical piece of jewellery commonly worn in larger-gauge body piercings, especially in the ear. 

  • A flat oblong cake of pressed tobacco. 

  • A high, tapering silk hat. 

  • A branch from a water-pipe to supply a hose. 

  • A drug dealer. 

  • A small seedling grown in a tray from expanded polystyrene or polythene filled usually with a peat or compost substrate. 

  • A block of wood let into a wall to afford a hold for nails. 

  • A worthless horse. 

  • A type of lure consisting of a rigid, buoyant or semi-buoyant body and one or more hooks. 

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 plug and unblock occurred in a corpus of books? (source: Google Ngram Viewer )