come together vs split up

come together

verb
  • To achieve orgasm at the same time. 

  • To meet. 

  • To harmonize socially; to come to an amicable agreement; to ally or band together. 

  • To assemble; to congregate. 

  • To arrive at a destination with someone after having travelled there with each other. 

split up

verb
  • separate, disassociate, cause to come apart. 

  • Cease to be together, break apart from the group. 

adj
  • Divided or separated. 

How often have the words come together and split up occurred in a corpus of books? (source: Google Ngram Viewer )