knuckle   (Sound)

The knuckle has 3 Senses.

• knuckle, metacarpophalangeal joint, knuckle joint
• a joint of a finger when the fist is closed
• 握りこぶしを閉じる時の指の関節

• knuckle
• press or rub with the knuckles
• 拳骨で、圧迫する、または、こする

• knuckle
• shoot a marble while keeping one's knuckles on the ground
• その人の指の関節を地に着けている間、大理石を撃つ