Akademik

brass knuckles
noun
a small metal weapon; worn over the knuckles on the back of the hand
Syn: ↑brass knucks, ↑knucks, ↑knuckles, ↑knuckle duster
Usage Domain: ↑plural, ↑plural form
Hypernyms: ↑weapon, ↑arm, ↑weapon system

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ˌbrass ˈknuckles [brass knuckles] noun plural (NAmE)
= knuckleduster

Useful english dictionary. 2012.