connector vs linkage

connector

noun
  • A device (or, more precisely, a mating pair of devices, often a plug and a socket) for connecting together two wires, cables, or hoses, allowing electricity or fluid to flow but also allowing easy disconnection and reconnection when necessary. 

  • One who connects. 

  • A line connecting two shapes in presentation software. 

  • A highway or freeway road which connects to another highway or freeway. It can be part of an interchange or a longer roadway such as the 1.5 mile (2.5 kilometer) U.S. Route 24 Connector. 

  • A software component that provides access from an application program to an external database or data source, such as a JDBC connector. 

  • Any of a group of cards of consecutive face value, useful in forming straights etc. 

linkage

noun
  • A mechanical device that connects things. 

  • A connection or relation between things or ideas. 

  • The act or result of linking: the combination of multiple object files into one executable, library, or object file. 

  • A United States foreign policy, during the 1970s détente in the Cold War, of persuading the Soviet Union to co-operate in restraining revolutions in the Third World in return for nuclear and economic concessions. 

  • The property of genes of being inherited together. 

  • A set of definitely related languages for which no proto-language can be derived, typically a group of languages within a family that have formed a sprachbund. 

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