Arm and Arms

Arm noun - A portable weapon from which a shot is discharged by gunpowder.

Arms is a synonym for arm in weapon system topic. In some cases you can use "Arms" instead a noun "Arm".

Nearby Words: armlet, armband, armless

Arms noun - Weapons considered collectively.

Arm is a synonym for arms in thing topic. Sometimes you can use "Arm" instead the word "Arms" as a noun or a verb, if it concerns topics such as weapon system.