double date vs go out

double date

verb
  • To go on a double date. 

noun
  • A (romantic) date that two couples go on together. 

go out

verb
  • To have a romantic relationship, one that involves going out together on dates; to be a couple. 

  • To have a romantic relationship (with someone). 

  • To fail. 

  • To recede; to ebb. 

  • To discard or meld all the cards in one's hand. 

  • To leave, especially a building. 

  • To sympathize with; to express positive feelings towards. 

  • To die. 

  • To spend the last moments of a show (while playing something). 

  • To pass out of fashion. 

  • To leave one's abode to go to public places, especially for recreation or entertainment. 

  • To become extinct, to expire. 

  • To be eliminated from a competition. 

  • To be turned off or extinguished. 

How often have the words double date and go out occurred in a corpus of books? (source: Google Ngram Viewer )