flagship vs govern

flagship

verb
  • To act as a flagship for. 

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. 

govern

verb
  • To exercise political authority; to run a government. 

  • To require that a certain preposition, grammatical case, etc. be used with a word; sometimes used synonymously with collocate. 

  • To exercise a deciding or determining influence on. 

  • To control the actions or behavior of; to keep under control; to restrain. 

  • To make and administer the public policy and affairs of; to exercise sovereign authority in. 

  • To control the speed, flow etc. of; to regulate. 

  • To have or exercise a determining influence. 

noun
  • The act of governing 

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