IPA: //ˈfaɪərɑːrm//
KK: /ˈfaɪərɑrm/
A type of weapon that can shoot bullets or other projectiles using gunpowder or other explosive materials.
The police found several illegal firearms during the raid.
Firearm is formed from "fire" (from Old English "fyr", meaning combustion or flame) and "arm" (from Old French "arme", meaning weapon). The word "firearm" refers to a weapon that uses combustion to propel a projectile.
Think of 'fire' as the combustion that powers the weapon and 'arm' as a weapon itself. This helps you remember that a firearm is a weapon that uses fire to shoot.