Pronunciation: [bɹˈas nˈʌkə͡l] (IPA) 
The correct spelling of the term for a hand weapon is "brass knuckle," not "brass knuckles." This is because the word "knuckle" is being used as a collective noun in this phrase. In phonetic transcription, "brass knuckle" would be written as /bræs ˈnʌkəl/. The phonemes /k/ and /l/ are written separately because they form two distinct sounds in the word, but they are still part of the same word and should not be pluralized.
Brass knuckles, also referred to as knuckle dusters or knucks, are a type of hand weapon predominantly made of metal, typically brass, with finger holes designed to be worn around the knuckles. This portable, handheld weapon is primarily utilized for self-defense or in physical altercations, but can also be employed for offensive purposes.
The typical brass knuckle design features finger holes that allow the wearer to securely grip the weapon, positioning the metallic portion over their knuckles while holding a fist. This construction provides an additional impact point and increases the force of a punch. Brass knuckles are intended to concentrate and distribute force from a punch onto a smaller surface area, resulting in enhanced damage to an opponent upon impact.
Given their potential as a weapon, brass knuckles are found in different forms and variations. These can include various designs, materials, and constructions, while conforming to legal restrictions in different jurisdictions. It is important to note that their possession and usage may be strictly regulated or even deemed illegal in some jurisdictions due to their potential for causing serious harm.
Overall, brass knuckles are hand-held weapons made of metal, generally brass, with finger holes that fortify the impact of a punch by concentrating force onto a smaller surface area. Their purpose is to enhance the force and damage inflicted during confrontations, which can be both for defensive or offensive purposes.
The word "brass knuckle" is derived from the combination of "brass" and "knuckle".
The term "brass" refers to a yellowish alloy of copper and zinc called brass, which is known for its hardness, durability, and corrosion resistance. Brass has been used historically for making various weapons and tools due to its advantageous properties.
"Knuckle", on the other hand, refers to the bony joint of a finger that connects it to the hand. In a more general sense, it can also refer to the fist as a whole, which is made by closing the fingers and bending them at these knuckles.
When these two terms are combined, "brass knuckle" refers to a type of weapon worn over the knuckles, typically made of brass or a similar metal.
