What is the meaning of hammer?

noun

• The part of a gunlock that strikes the percussion cap when the trigger is pulled.
  • synonyms: cock
• A hand tool with a heavy rigid head and a handle; used to deliver an impulsive force by striking.
• The ossicle attached to the eardrum.
  • synonyms: malleus
• A light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc..
  • synonyms: mallet
• A heavy metal sphere attached to a flexible wire; used in the hammer throw.
• A striker that is covered in felt and that causes the piano strings to vibrate.
• A power tool for drilling rocks.
  • synonyms: power hammer
• The act of pounding (delivering repeated heavy blows. )
  • usage: "the sudden hammer of fists caught him off guard"; "the pounding of feet on the hallway"
  • synonyms: pound, hammering, pounding

verb

• Beat with or as if with a hammer.
  • usage: "hammer the metal flat"
• Create by hammering.
  • usage: "hammer the silver into a bowl"; "forge a pair of tongues"
  • synonyms: forge