closure vs keyhole

closure

noun
  • A device to facilitate temporary and repeatable opening and closing. 

  • An event or occurrence that signifies an ending. 

  • An abstraction that represents a function within an environment, a context consisting of the variables that are both bound at a particular time during the execution of the program and that are within the function's scope. 

  • That which closes or shuts; that by which separate parts are fastened or closed. 

  • The smallest set that both includes a given subset and possesses some given property. 

  • A method of ending a parliamentary debate and securing an immediate vote upon a measure before a legislative body. 

  • The process whereby the reader of a comic book infers the sequence of events by looking at the picture panels. 

  • The phenomenon by which a group maintains its resources by the exclusion of others from their group based on varied criteria. ᵂᵖ 

  • The act of shutting or closing something permanently or temporarily. 

  • The smallest closed set which contains the given set. 

  • The act of shutting; a closing. 

  • A feeling of completeness; the experience of an emotional conclusion, usually to a difficult period. 

keyhole

noun
  • Any small opening resembling the hole for a key in shape or function. 

  • A mortise for a key or cotter. 

  • A gravitational keyhole. 

  • A hole or excavation in beams intended to be joined together, to receive the key that fastens them. 

  • A transient column of vapor or plasma formed when using high energy beams, such as lasers, for welding or cutting. 

  • The free-throw lane together with the circle surrounding the free-throw line; key. 

  • The hole in a lock where the key is inserted and turns. 

  • A circle cut out of a garment as a decorative effect, typically at the front or back neckline of a dress. 

  • A welding method in which a hole forms in the surface immediately ahead of the puddle in the direction of welding. The hole is filled as the weld progresses. 

verb
  • To strike a target after wobbling in flight so that the long axis of the bullet does not follow the line of flight, typically due to insufficient spin resulting from the rifling in the barrel. 

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