Open English Wordnet
Nouns
(n)clinch(boxing) the act of one boxer holding onto the other to avoid being hit and to rest momentarily (n)clinchthe flattened part of a nail or bolt or rivet (n)clamp, clincha device (generally used by carpenters) that holds things firmly together (n)hug, clinch, squeezea tight or amorous embrace“come here and give me a big hug” Verbs
(v)clinchsecure or fasten by flattening the ends of nails or bolts“The girder was clinched into the wall” (v)clinchhold a boxing opponent with one or both arms so as to prevent punches (v)clench, clinchhold in a tight grasp“clench a steering wheel” (v)clinchflatten the ends (of nails and rivets)“the nails were clinched” (v)clinchsettle conclusively“clinch a deal”