Third-person singular simple present indicative form of knuckle under

plural of knuckle-scraper

Synonym of knuckle dragger

A tattoo on one's finger(s) just above or below the knuckle

plural of knuckle joint

(engineering) A joint where the forked end of a connecting rod is joined by a bolt to another piece of the machinery.

plural of knuckle bow

The curved part of a sword-guard that covers the fingers.

Third-person singular simple present indicative form of bare-knuckle

Third-person singular simple present indicative form of bare knuckle