clinch

a small slip noose made with seizing

settle conclusively

“clinch a deal”

the flattened part of a nail or bolt or rivet

a tight or amorous embrace

a device (generally used by carpenters) that holds things firmly together

hold in a tight grasp

the act of one boxer holding onto the other to avoid being hit and to rest momentarily

embrace amorously

flatten the ends (of nails and rivets)

“the nails were clinched”

hold a boxing opponent with one or both arms so as to prevent punches

secure or fasten by flattening the ends of nails or bolts

“The girder was clinched into the wall”