1. (

• clinch ,

) secure or fasten by flattening the ends of nails or bolts; "The girder was clinched into the wall" ;

2. (

• clinch ,

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

3. (

• clench ,
• clinch ,

) hold in a tight grasp; "clench a steering wheel" ;

4. (

• clinch ,

) embrace amorously ;

5. (

• clinch

) flatten the ends (of nails and rivets); "the nails were clinched" ;

6. (

• clinch

) settle conclusively; "clinch a deal" ;