connection vs double date

connection

noun
  • sexual intercourse 

  • A feeling of understanding and ease of communication between two or more people. 

  • A kinship relationship between people. 

  • An individual who is related to oneself, through either family or business. 

  • A drug dealer. 

  • The description for a Methodist denomination as a whole, as opposed to its constituent churches, circuits, districts and conferences. 

  • Coherence; lack of disjointedness 

  • The point at which two or more things are connected. 

  • A transfer from one transportation vehicle to another in scheduled transportation service 

  • A set of sets that contains the empty set, all one-element sets for any element that is included in any of the sets, and the union of any group of sets that are elements where the intersections of those sets is non-empty. 

  • An established communications or transportation link. 

  • The act of connecting. 

double date

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

verb
  • To go on a double date. 

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