- (n.) The joint of a plant.
- (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.
- (n.) The joining pars of a hinge through which the pin or rivet passes; a knuckle joint.
- (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.
- (v.i.) To yield; to submit; -- used with down, to or under.
- (v.t.) To beat with the knuckles; to pommel.
- (n.) The joint of a finger, particularly when made prominent by the closing of the fingers.
- (n.) The kneejoint or middle joint, of either leg of a quadruped, especially of a calf; -- formerly used of the kneejoint of a human being.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). knuckle. Retrieved September 21, 2026, from http://smartdefine.org/knuckle/definitions/2025796 |
| Chicago | Webster's. 2011. "knuckle" http://smartdefine.org/knuckle/definitions/2025796 (accessed September 21, 2026). |
| Harvard | Webster's 2011, knuckle, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/knuckle/definitions/2025796>. |
| MLA | Webster's. "knuckle" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/knuckle/definitions/2025796> |