- projectiles to be fired from a gun

- information that can be used to attack or defend a claim or argument or viewpoint
"his admission provided ammunition for his critics"

- any nuclear or chemical or biological material that can be used as a weapon of mass destruction

1. Military stores, or provisions of all kinds for attack or defense. [Obs.]

2. Articles used in charging firearms and ordnance of all kinds; as powder, balls, shot, shells, percussion caps, rockets, etc.

3. Any stock of missiles, literal or figurative.

Ammunition bread
shoes
etc., such as are contracted for by government, and supplied to the soldiers. [Eng.]

1. To provide with ammunition.