- the material fired, scattered, dropped, or detonated from any weapon, as bombs or rockets, and especially shot, shrapnel, bullets, or shells fired by guns.
- the means of igniting or exploding such material, as primers, fuzes, and gunpowder.
- any material, means, weapons, etc., used in any conflict: a crude ammunition of stones.
- information, advice, or supplies to help defend or attack a viewpoint, argument, or claim: Give me some ammunition for the debate.
- any military supplies.
- any projectiles, such as bullets, rockets, etc, that can be discharged from a weapon
- bombs, missiles, chemicals, biological agents, nuclear materials, etc, capable of use as weapons
- any means of defence or attack, as in an argument
