bullet bullet /ˈbʊlət/

noun

1. () A projectile that is fired from a gun  ( slug , bullet )
   a projectile that is fired from a gun
     The bullet pierced through the target with precision.
   The bullet pierced through the target with precision.
   
   
2. (baseball) a pitch thrown with maximum velocity  ( bullet , heater , hummer , fastball , smoke )
   (baseball) a pitch thrown with maximum velocity
    He swung late on the fastball
   he swung late on the fastball
    He showed batters nothing but smoke
   he showed batters nothing but smoke
   
3. A high-speed passenger train  ( bullet , bullet train )
   a high-speed passenger train