In law, a professional boxer's fists are considered weapons; that's one reason that real fighters avoid brawls.
Toxins produced by living organisms are considered chemical weapons, although the boundary is blurry.
Furthermore, knives with a blade longer than 15 cm are considered weapons and have a similar regime to those of firearms.
Swiss Army knives are also issued, but are not considered weapons.
Those same interpretations have meant that Japan has no aircraft carriers or bombers; both are considered offensive weapons.
During trial, eggs and stones were considered deadly weapons.
Holy items were now considered weapons when dealing with vampires.
At that time Hitler saw victory within his grasp and considered new weapons, etc." superfluous.
Skates are not permitted as part of hand luggage because the blades are considered potential weapons.
Because of this foil and sabre are considered conventional weapons.