Dec 14, 2015 · The meaning of KNUCKLE is the rounded prominence formed by the ends of the two adjacent bones at a joint —used especially of those at the joints of the fingers.

KNUCKLE definition: 1. one of the joints in the hand where your fingers bend, especially where your fingers join on to…. Learn more.

Dec 14, 2025 · 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; a knuckle duster.

Definition of knuckle noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

something resembling a knuckle, as any of the projecting, cylindrical parts through which a pin is passed to form a hinge

Define knuckle. knuckle synonyms, knuckle pronunciation, knuckle translation, English dictionary definition of knuckle. n. 1. a. The prominence of the dorsal aspect of a joint of a finger, …

n. Anatomy [countable] any joint of a finger, esp. where a finger bends, or where a finger meets the hand. v. knuckle down, [no object] to apply oneself with energy; to work earnestly; become …

Definition of knuckle. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

KNUCKLE definition: a joint of a finger, especially one of the articulations of a metacarpal with a phalanx. See examples of knuckle used in a sentence.

KNUCKLE meaning: 1 : any one of the thick, bony parts (called joints) in your fingers; 2 : a piece of meat that includes a joint from the leg of an animal