dispatch vs expedition

dispatch

noun
  • The act of doing something quickly. 

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

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. 

expedition

noun
  • The process or activities of performing expediter tasks. 

  • An important or long journey, for example a march or a voyage 

  • The group of people making such excursion. 

  • A military journey; an enterprise against some enemy or into enemy territory. 

  • A trip, especially a long one, made by a person or a group of people for a specific purpose 

verb
  • To take part in a trip or expedition; to travel. 

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