Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun knuckles

1 sense of knuckles

Sense 1
brass knucks, knucks, brass knuckles, knuckles, knuckle duster -- (a small metal weapon; worn over the knuckles on the back of the hand)
       => weapon, arm, weapon system -- (any instrument or instrumentality used in fighting or hunting; "he was licensed to carry a weapon")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun knuckle

1 sense of knuckle

Sense 1
knuckle, knuckle joint, metacarpophalangeal joint -- (a joint of a finger when the fist is closed)
       => synovial joint, articulatio synovialis, diarthrosis -- (a joint so articulated as to move freely)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb knuckle

2 senses of knuckle

Sense 1
knuckle -- (press or rub with the knuckles)
       => press -- (exert pressure or force to or upon; "He pressed down on the boards"; "press your thumb on this spot")

Sense 2
knuckle -- (shoot a marble while keeping one's knuckles on the ground)
       => shoot -- (throw or propel in a specific direction or towards a specific objective; "shoot craps"; "shoot a golf ball")