fighter

fighter
    n 1: someone who fights (or is fighting) [syn: {combatant},
         {battler}, {belligerent}, {fighter}, {scrapper}]
    2: a high-speed military or naval airplane designed to destroy
       enemy aircraft in the air [syn: {fighter}, {fighter
       aircraft}, {attack aircraft}]
    3: someone who fights for a cause [syn: {champion}, {fighter},
       {hero}, {paladin}]
    

Fighter \Fight"er\ (f[imac]t"[~e]r), n. [AS. feohtere.]
   1. One who fights; a combatant; a warrior. --Shak.
      [1913 Webster]

   2. A boxer; a pugilist.
      [PJC]

   3. A person with the determination and will to persist
      through great difficulty to achieve a goal; one with the
      courage to fight and resist an opponent, and to struggle
      with all one's powers.
      [PJC]

   4. (Mil.) A military aircraft designed to seek out and
      destroy enemy aircraft; it is usually smaller and more
      maneuvarable than aircraft designed specifically for
      bombing. However, hybrid {fighter-bomber} aircraft that
      perform both functions also are used.
      [PJC]
    

82 Moby Thesaurus words for "fighter":
      Chinese boxer, bantamweight, battler, belligerent, belted knight,
      bickerer, black belt, blade, boxer, bravo, brawler, brown belt,
      bruiser, bully, bullyboy, combatant, competitor, contender,
      contestant, disputant, duelist, enforcer, featherweight, fencer,
      feuder, fighting cock, fighting man, fisticuffer, flyweight,
      foilsman, gamecock, gladiator, goon, gorilla, hatchet man,
      heavyweight, hood, hoodlum, hooligan, jouster, karate expert,
      knight, light heavyweight, lightweight, man-at-arms, middleweight,
      militant, palooka, plug-ugly, prizefighter, pug, pugilist,
      quarreler, rioter, rival, rough, rowdy, ruffian, sabreur,
      savate expert, scrapper, scuffler, serviceman, sparrer, squabbler,
      strong arm, strong-arm man, strong-armer, struggler, swaddy,
      swashbuckler, sweat, sword, swordplayer, swordsman, thug, tilter,
      tough, tussler, warrior, welterweight, wrangler