plug vs seal

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. 

seal

verb
  • To close by means of a seal. 

  • To place a seal on (a document). 

  • To confirm or set apart as a second or additional wife. 

  • To guarantee. 

  • To fasten (something) so that it cannot be opened without visible damage. 

  • To close securely to prevent leakage. 

  • To place in a sealed container. 

  • To prevent people or vehicles from crossing (something). 

  • To tie up animals (especially cattle) in their stalls. 

  • To mark with a stamp, as an evidence of standard exactness, legal size, or merchantable quality. 

  • To form a sacred commitment. 

  • To hunt seals. 

  • To place a notation of one's next move in a sealed envelope to be opened after an adjournment. 

  • To fix, as a piece of iron in a wall, with cement or plaster, etc. 

  • To fry (meat) at a high temperature to retain the juices. 

noun
  • An impression of such stamp on wax, paper or other material used for sealing. 

  • A bearing representing a creature something like a walrus. 

  • Anything that secures or authenticates. 

  • A tight closure, secure against leakage. 

  • Something which will be visibly damaged if a covering or container is opened, and which may or may not bear an official design. 

  • A chakra. 

  • A design or insignia usually associated with an organization or an official role. 

  • Confirmation or approval, or an indication of this. 

  • A stamp used to impress a design on a soft substance such as wax. 

  • Something designed to prevent liquids or gases from leaking through a joint. 

  • A pinniped (Pinnipedia), particularly an earless seal (true seal) or eared seal. 

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