Gunnery (noun)

1. The art and science of using firearms, especially artillery, in warfare.
2. The operation and maintenance of guns and artillery.

Origin:

From gunner + -y, from the use of guns and artillery in warfare.

Examples:

1. He was trained in gunnery at the military academy.
2. The ship"s gunnery was able to take out the enemy"s artillery.
3. Gunnery is the art and science of using firearms, especially artillery, in warfare.
4. Gunnery can include the operation and maintenance of guns and artillery.
5. Gunnery can also refer to the skill of aiming and firing a gun, particularly in naval warfare.