dispatch vs retention

dispatch

verb
  • To send (a shipment) with promptness. 

  • To dispose of speedily, as business; to execute quickly; to make a speedy end of; to finish; to perform. 

  • To send (a person) away hastily. 

  • To pass on for further processing, especially via a dispatch table (often with to). 

  • To rid; to free. 

  • To destroy (someone or something) quickly and efficiently. 

  • To send (an important official message) promptly, by means of a diplomat or military officer. 

  • To send (a journalist) to a place in order to report. 

noun
  • A mission by an emergency response service, typically involving attending to an emergency in the field. 

  • A message sent quickly, as a shipment, a prompt settlement of a business, or an important official message sent by a diplomat, government official, military officer, etc. 

  • The act of doing something quickly. 

  • The passing on of a message for further processing, especially through a dispatch table. 

retention

noun
  • The portion of a potential damange that must be paid for by the holder of an insurance policy. 

  • The act or power of remembering things 

  • The involuntary withholding of urine and faeces 

  • A memory; what is retained in the mind 

  • The length of time an individual remains in treatment 

  • The right to withhold a debt, or of retaining property until a debt due to the person claiming the right is duly paid; a lien. 

  • The act of retaining or something retained 

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