A person who fights; a combatant.

A warrior; a fighting soldier.

A pugnacious, competitive person.

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

A class of aircraft primarily designed to shoot down other aircraft, sometimes with the secondary purpose of attacking ground targets, and can also refer to a starfighter in science fiction.

A participant in boxing or any martial art.

(colloquial) A firefighter.

(video games) A game with a focus on physical combat.