documentary vs verbal

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. 

verbal

adj
  • Of or relating to words. 

  • Concerned with the words, rather than the substance of a text. 

  • Capable of speech. 

  • Used to form a verb. 

  • Word for word. 

  • Derived from, or having the nature of a verb. 

  • Consisting of words only. 

  • Expressly spoken rather than written; oral. 

noun
  • A verb form which does not function as a predicate, or a word derived from a verb. In English, infinitives, participles and gerunds are verbals. 

  • Talk; speech, especially banter or scolding. 

  • A spoken confession given to police. 

verb
  • To induce into fabricating a confession. 

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