firearm

As a noun firearm

is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between firearm and sword

is that firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile while sword is (weaponry) a long-bladed weapon having a handle and sometimes a hilt and designed to stab, hew, or slice .

As an adjective unarmed

is defenceless and lacking weapons or armour.

As a noun firearm is

a personal weapon that uses explosive powder to propel a metal (usually lead) projectile.

As nouns the difference between weapons and firearm

is that weapons is while firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile.

As nouns the difference between polearm and firearm

is that polearm is a close quarter combat weapon with the main fighting part of the weapon placed on the end of a long shaft, typically of wood while firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile.

As nouns the difference between firearm and null

is that firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile while null is zero, nil; the cardinal number before einn.

As nouns the difference between firearm and sidearm

is that firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile while sidearm is a personal weapon normally carried in a holster on the body of a wielder for immediate use.

As a verb sidearm is

to throw a ball with one's arm roughly parallel to the ground.

As an adverb sidearm is

with one's arm roughly parallel to the ground.

As nouns the difference between firearm and armament

is that firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile while armament is a body of forces equipped for war.

As nouns the difference between flamethrower and firearm

is that flamethrower is a device that projects a flame for starting fires, it may also project additional fuel to help ignition used either as a weapon or a tool while firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile.

As nouns the difference between firearm and ammunition

is that firearm is a personal weapon that uses explosive powder to propel a metal (usually lead) projectile while ammunition is (senseid)articles used in charging firearms and ordnance of all kinds; as powder, balls, shot, shells, percussion caps, rockets, etc.