dialog vs playscript

dialog

noun
  • In a dramatic or literary presentation, the verbal parts of the script or text; the verbalizations of the actors or characters. 

  • A conversation or other form of discourse between two or more individuals. 

  • A literary form, where the presentation resembles a conversation. 

  • A dialog box. 

verb
  • To discuss or negotiate so that all parties can reach an understanding. 

playscript

noun
  • The script for a theatrical play. 

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