fender in WordNet English dictionary

1. a cushion-like device that reduces shock due to an impact
   buffer  fender 
   
2. an inclined metal frame at the front of a locomotive to clear the track
   fender  buffer  cowcatcher  pilot 
   
3. a barrier that surrounds the wheels of a vehicle to block splashing water or mud
   "in Britain they call a fender a wing"
   fender  wing 
   
4. a low metal guard to confine falling coals to a hearth
   fender