Ordnance (noun)

1. Military equipment, especially artillery and related equipment such as tanks, guns, and missiles.
2. The department of a government or military organization responsible for the maintenance and supply of such equipment.

Origin:

From middle english ordenance, from old french ordenance, from latin ordinantia, from ordinare ("to orde.r")

Examples:

1. The soldier was responsible for the maintenance of ordnance equipment.
2. The ordnance department supplied the troops with the necessary weapons and ammunition.
3. The new tanks and artillery were part of the army's ordnance upgrade.
4. The ordnance factory produced a new line of missiles.
5. The ordnance survey map showed the location of the military bases and artillery positions.