knocking vs report

knocking

noun
  • A repetitive ping, knock, or similar sound coming from an engine in which there are repeated uncontrolled explosions in the combustion chamber. 

  • An act in which something is knocked on, or the sound thus produced 

report

noun
  • The sharp, loud sound from a gun or explosion. 

  • An employee whose position in a corporate hierarchy is below that of a particular manager. 

  • Reputation. 

  • A piece of information describing, or an account of certain events given or presented to someone, with the most common adpositions being by (referring to creator of the report) and on (referring to the subject). 

verb
  • To write news reports (for); to cover as a journalist or reporter. 

  • To relate details of (an event or incident); to recount, describe (something). 

  • To repeat (something one has heard), to retell; to pass on, convey (a message, information etc.). 

  • To be accountable to or subordinate to (someone) in a hierarchy; to receive orders from (someone); to give official updates to (someone who is above oneself in a hierarchy). 

  • To show up or appear at an appointed time; to present oneself. 

  • To notify someone of (particular intelligence, suspicions, illegality, misconduct etc.); to make notification to relevant authorities; to submit a formal report of. 

  • To make a formal statement, especially of complaint, about (someone). 

  • To take minutes of (a speech, the doings of a public body, etc.); to write down from the lips of a speaker. 

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