flagship vs motive

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. 

motive

noun
  • A motif. 

  • A motif; a theme or subject, especially one that is central to the work or often repeated. 

  • An incentive to act in a particular way; a reason or emotion that makes one want to do something; anything that prompts a choice of action. 

  • Something which causes someone to want to commit a crime; a reason for criminal behaviour. 

verb
  • To prompt or incite by a motive or motives; to move. 

adj
  • Relating to motion and/or to its cause 

  • Causing motion; having power to move, or tending to move 

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