English to English

noun (n)

• a portable gun(noun.artifact)

  Example:
  He wore his firearm in a shoulder holster.
  

  Synonym:
  piece, small-arm
  

  source: wordnet30
• A gun, pistol, or any weapon from which a shot is discharged by the force of an explosive substance, as gunpowder.(noun)

  source: webster1913