ball in WordNet English dictionary

1. a pitch that is not in the strike zone
   "he threw nine straight balls before the manager yanked him"
   ball 
   
2. the game of baseball
   ball 
   
3. round object that is hit or thrown or kicked in games
   "the ball travelled 90 mph on his serve"; "the mayor threw out the first ball"; "the ball rolled into the corner pocket"
   ball 
   
4. a spherical object used as a plaything
   "he played with his rubber ball in the bathtub"
   ball 
   
5. a solid projectile that is shot by a musket
   "they had to carry a ramrod as well as powder and ball"
   musket ball  ball 
   
6. a more or less rounded anatomical body or mass
   "the ball at the base of the thumb"; "he stood on the balls of his feet"
   ball 
   
7. one of the two male reproductive glands that produce spermatozoa and secrete androgens
   "she kicked him in the balls and got away"
   testis  testicle  orchis  ball  ballock  bollock  nut  egg 
   
8. a lavish dance requiring formal attire
   ball  formal 
   
9. the people assembled at a lavish formal dance
   "the ball was already emptying out before the fire alarm sounded"
   ball 
   
10. a compact mass
    "a ball of mud caught him on the shoulder"
    ball  clod  glob  lump  clump  chunk 
    
11. an object with a spherical shape
    "a ball of fire"
    ball  globe  orb 
    

1. form into a ball by winding or rolling
   "ball wool"
   ball