pictures vs preview

pictures

noun
  • cinema, movie theatre 

preview

noun
  • An advance showing of a film, exhibition etc. 

  • a facility for seeing and checking a document or photo, or changes to it, before saving and/or printing it. 

  • An experience of something in advance. 

  • Something seen in advance. 

verb
  • To show or watch something, or part of it, before it is complete. 

  • To show something in advance, a facility for seeing and checking a document or photo, or changes to it, before saving and/or printing it. 

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