flagship vs ultimate

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. 

ultimate

noun
  • The most basic or fundamental of a set of things 

  • The greatest extremity; the maximum 

  • The final or most distant point; the conclusion 

adj
  • Being the most distant or extreme; farthest. 

  • That will happen at some time; eventual. 

  • Final; last in a series. 

  • Last in a word or other utterance. 

  • Being the greatest possible; maximum; most extreme. 

  • Last in a train of progression or consequences; tended toward by all that precedes; arrived at, as the last result; final. 

  • Incapable of further analysis; incapable of further division or separation; constituent; elemental. 

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