join vs point of contact

join

noun
  • An intersection of piping or wiring; an interconnect. 

  • An intersection of data in two or more database tables. 

  • The act of joining something, such as a network. 

  • The lowest upper bound, an operation between pairs of elements in a lattice, denoted by the symbol ∨. 

verb
  • To unite in marriage. 

  • To produce an intersection of data in two or more database tables. 

  • To come into the company of. 

  • To come together; to meet. 

  • To accept, or engage in, as a contest. 

  • To become a member of. 

  • To connect or combine into one; to put together. 

  • To enter into association or alliance, to unite in a common purpose. 

point of contact

noun
  • A specific intersection; a contact point. 

  • The single person who represents an organization, for a specific task. 

  • A person who is associated with a defined Internet entity. 

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