passer in WordNet English dictionary

1. (football) a ball carrier who tries to gain ground by throwing a forward pass
   passer  forward passer 
   
2. a person who passes by casually or by chance
   passerby  passer-by  passer 
   
3. a student who passes an examination
   passer 
   
4. a person who passes as a member of a different ethnic or racial group
   passer