1. noun
    a tool resembling a hammer but with a large head (usually wooden); used to drive wedges or ram down paving stones or for crushing or beating or flattening or smoothing
  2. noun
    a light drumstick with a rounded head that is used to strike percussion instruments
  3. noun
    a sports implement with a long handle and a head like a hammer; used in sports (polo or croquet) to hit a ball