fighter  
noun [ C ] uk/ˈfaɪ.tər/ us/ˈfaɪ.t̬ɚ/
  (PERSON)      
  战士;战斗者;斗士
someone who fights
  She's a fighter (= she tries hard and will not easily give up). 她是一个坚强不屈的斗士。 
 - More examples
 - He had a reputation as a fearless fighter.
 - The fighter had a strong, sinewy body.
 - Government forces were pinned down by resistance fighters 30 miles north of the capital.
 - Both fighters were exhausted by the final round.
 - The fighters had to be separated by the referee.
 
  (AIRCRAFT)      
 战斗机,歼击机
a small, fast military aircraft used for chasing and destroying enemy aircraft
  a fighter plane/aircraft 战斗机 
 a fighter pilot 战斗机驾驶员 
 - More examples
 - The circuitry in this fighter aircraft has been protected against strong magnetic fields.
 - A fighter plane flew over.
 - The film stars Mark Burgess-Ashton as the gung-ho young fighter pilot.
 - The supersonic fighter plane was shot down by a missile.
 - The fighters are equipped with the latest radar technology.