Synonyms for fighter

noun

1. One who fights

   contestant, disputant, contender, party to a quarrel, warrior, soldier, combatant, belligerent, assailant, aggressor, antagonist, rival, opponent, champion, swashbuckler, swordsman, duelist, bully, gladiator, janissary, feudist, competitor, wrestler, controversialist, quarrelsome person, fire-eater, brawler, scrapper*.

2. A professional pugilist

   boxer, prizefighter, battler*, pug*, palooka*, chump*, bruiser*, slugger*.

3. An airplane built to fight

   combat plane, interceptor, pursuit plane; see plane 3.