ambition vs libido

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. 

libido

noun
  • Sexual urges or drives. 

  • Drives or mental energies related to or based on sexual instincts but not necessarily sexual in and of themselves. 

  • Synonym of albedo in terms of a planet's, such as that of Mars, average surface spectral reflectivity. 

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