The Sten gun was a British submachine gun used during World War II.

He fired the burp gun at the target.

He's a real son of a gun.

The fingerprints on the gun were the smoking gun that led to his conviction.

I used a grease gun to lubricate the machine.

He used a harpoon gun to catch the whale.

The minute gun is fired to mark the beginning of the ceremony.

He carried a submachine gun for self-defense.

The gunboat patrolled the river to ensure the safety of the area.

Gunboat diplomacy was a strategy used by powerful nations to assert their influence through the threat of military force.