plural
knuckles
plural
knuckles
Britannica Dictionary definition of KNUCKLE
[count]
1
:
any one of the thick, bony parts (called joints) in your fingers
—
see picture at hand
2
:
a piece of meat that includes a joint from the leg of an animal
a rap on/over/across the knuckles
—
see 1rap
rap (someone) on/over/across the knuckles
—
see 2rap
2
knuckle
/ˈnʌkəl/
verb
knuckles;
knuckled;
knuckling
knuckles;
knuckled;
knuckling
Britannica Dictionary definition of KNUCKLE
knuckle down
[phrasal verb]
informal
:
to begin to work hard
—
often + to
knuckle under
[phrasal verb]
informal
:
to stop trying to fight or resist something
:
to agree to do or accept something that you have been resisting or opposing
—
often + to