Knuckle duster and Knuckle-duster

Knuckle duster noun - A small metal weapon; worn over the knuckles on the back of the hand.

Knuckle-duster and knuckle duster are semantically related. In some cases you can use "Knuckle-duster" instead a noun phrase "Knuckle duster".

Knuckle duster and knuckle-duster are semantically related. Sometimes you can replace phrase "Knuckle duster" with "Knuckle-duster", this phrases are similar.