1. (

• combatant ,
• battler ,
• belligerent ,
• fighter ,
• scrapper

) someone who fights (or is fighting) ;

2. (

• fighter ,
• fighter_aircraft ,
• attack_aircraft

) a high-speed military or naval airplane designed to destroy enemy aircraft in the air ;

3. (

• champion ,
• fighter ,
• hero ,
• paladin

) someone who fights for a cause ;