ambition vs urgency

ambition

noun
  • An object of an ardent desire. 

  • Eager or inordinate desire for some object that confers distinction, as preferment, honor, superiority, political power, or fame; desire to distinguish one's self from other people. 

  • A personal quality similar to motivation, not necessarily tied to a single goal. 

  • A desire, as in (sense 1), for another person to achieve these things. 

verb
  • To seek after ambitiously or eagerly; to covet. 

urgency

noun
  • Insistence, pressure, urge. 

  • The quality or condition of being urgent. 

  • 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 ambition and urgency occurred in a corpus of books? (source: Google Ngram Viewer )