He hurt his knuckle while playing basketball.
A joint in the fingers where the bones meet.
She knuckled the door to get attention.
To hit someone with a fist or to press something with a knuckle.
The mechanic replaced the knuckle on the car's suspension.
A part of a tool or machine that resembles a knuckle.
He trained to strengthen his knuckle for boxing.
A term used in boxing to refer to the fist.
He knuckled his fingers before the fight.
To bend or curl one's fingers into a fist.
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