Knuckle(n.)
- The joining pars of a hinge through which the pin or rivet passes; a knuckle joint.
Knuckle(n.)
- A convex portion of a vessel's figure where a sudden change of shape occurs, as in a canal boat, where a nearly vertical side joins a nearly flat bottom.
Knuckle(n.)
- A contrivance, usually of brass or iron, and furnished with points, worn to protect the hand, to add force to a blow, and to disfigure the person struck; as, brass knuckles; -- called also knuckle duster.
Knuckle(v. i.)
- To yield; to submit; -- used with down, to, or under.
Knuckle(v. t.)
- To beat with the knuckles; to pommel.