knuckle
nounUK /ˈnʌk.əl/
US /ˈnʌk.əl/
A knuckle is the bumpy part of your finger where it bends.
She scraped her knuckle while climbing the tree.
SYNONYMS
OTHER MEANINGS
2. A cut of meat from the lower leg of an animal, often used in soups and stews.
Grandma simmered a ham knuckle with beans for dinner.
3. To press the knuckles of one hand against something, or to rub them together.
He knuckled his eyes after waking up.
4. To apply oneself seriously to a task (usually with 'down').
We need to knuckle down and finish our homework.
5. A rounded metal or plastic joint that allows parts to bend, as on a hinge.
The door's knuckle was worn and squeaked.