flagship vs prince

flagship

noun
  • The most important one out of a related group. 

  • The ship occupied by the fleet's commander (usually an admiral); it denotes this by flying his flag. 

  • The ship regarded as most important out of a group, e.g. a nation's navy or company's fleet. 

verb
  • To act as a flagship for. 

prince

noun
  • Someone who is preeminent in their field; a great person. 

  • The (male) ruler or head of a principality. 

  • Any of various nymphalid butterflies of the genus Rohana. 

  • A (male) ruler, a sovereign; a king, monarch. 

  • A type of court card used in tarot cards, the equivalent of the jack. 

  • A non-royal high title of nobility, especially in France and the Holy Roman Empire. 

  • The mushroom Agaricus augustus. 

  • A male member of a royal family other than the ruler; especially (in the United Kingdom) the son or grandson of the monarch. 

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