belligerent vs fighter

belligerent

noun
  • A state or other armed participant in warfare 

adj
  • Eager to go to war, warlike. 

  • Engaged in warfare, warring. 

  • Of or pertaining to war. 

  • Uncooperative. 

  • Aggressively hostile, eager to fight. 

  • Acting violently towards others. 

fighter

noun
  • A warrior; a fighting soldier. 

  • A pugnacious, competitive person. 

  • A participant in boxing or any martial art. 

  • A person with a strong determination to resist protracted or severe adversity, especially illness. 

  • A firefighter. 

  • A person who fights; a combatant. 

  • A game with a focus on physical combat. 

  • A class of fixed-wing aircraft whose primary purpose is to shoot down other aircraft, sometimes accompanied by a secondary purpose of attacking ground targets. 

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