fighter
Word family adjectivefightablefightingnounfighterverbfight
Airforce, Sport
fight·er /ˈfaɪtə $ -ər/ ●●○ noun [countableC] 
1 (also fighter plane/aircraft/jet)PMP a small fast military plane that can destroy other planes 战斗机；歼击机 He was shot down by enemy fighters.
他被敌军战斗机击落。
a fighter pilot
战斗机驾驶员
2. DSFIGHTsomeone who fights, especially as a sport 拳击手；战士，士兵，战斗者
3 FIGHT FOR OR AGAINST somethingsomeone who keeps trying to achieve something in difficult situations 斗士，奋斗者
→ firefighter, freedom fighter James is a fighter – he never gives up.
詹姆斯是个顽强拼搏的人——他从不放弃。
Examples from the Corpus
fighter• Dad was a fighter, but he couldn't beat cancer.• a crime fighter• Halflings are excellent bowmen and stubborn fighters despite their rather diminutive size.• And legendary names like the Tiger Moth trainer and Mosquito and Vampire fighters were also made there.
fighter pilot• It adds up to a picture of a man in a wider context that just as a fighter pilot.• This boy wants to be a fighter pilot.• He was an outstanding fighter pilot who proved his mettle in a variety of tough assignments, including two wars.• Don Shepperd told the news conference, referring to the fighter pilots involved in the two encounters.• The fighter pilot taking a little light relief.• The fighter pilots kept it hidden at the back of a hangar, because it was thoroughly unofficial.• The downsizing Navy is training fighter pilots elsewhere.