documentary vs registered

documentary

adj
  • Of, related to, or based on documents. 

  • Which serves to document (record and:or illustrate) a subject. 

  • Presented objectively without the insertion of fictional matter. 

noun
  • A film, TV program, publication etc. which presents a social, political, scientific or historical subject in a factual or informative manner. 

registered

adj
  • Having a mailed item recorded in a register to enable its location to be tracked, sometimes with added insurance to cover loss. 

  • Having had one's name added to an official list or entered into a register 

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