outlet vs wall socket

outlet

noun
  • A vent or similar passage to allow the escape of something. 

  • A river that runs out of a lake. 

  • Something which allows for the release of one's desires. 

  • A shop that sells the products of a particular manufacturer or supplier. 

  • A wall-mounted device such as a socket or receptacle connected to an electrical system at which current is taken to supply utilization equipment or appliances. 

wall socket

noun
  • Any outlet or recess in a wall. 

  • A mains electricity power point mounted in or on a wall inside a dwelling or other building. 

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