expedition vs urgency

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. 

urgency

noun
  • The quality or condition of being urgent. 

  • Insistence, pressure, urge. 

  • A sudden and compelling need to urinate that is difficult to defer, associated with conditions such as urinary tract infections and overactive bladder. 

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