Definition of: clinch

(klinch) v.t.
1. To secure firmly, as a nail or staple, by bending down the protruding point.
2. To fasten together by this means.
3. To grapple with.
4. To confirm, as a bargain or agreement.
5. Naut. To fasten by making a clinch.
— v.i.
6. To take a strong, close hold; grapple, as combatants, with one another.
7. Slang To embrace or hug.
— noun
1. A clinching, or that which clinches; especially, a clinched nail or bolt; a clamp.
2. A decisive or conclusive argument.
3. Naut. A rope knot made by a half–hitch and seizings: called an. inside or an outside clinch.
4. A grip or struggle at close quarters, as in boxing.
5. Slang A close embrace. Also called clench. [Var. of CLENCH]