1. An argument that is conclusive
   "The new evidence was the clincher that convinced the jury of the defendant's guilt";
   - determiner, determining factor
    
2. A point, fact or remark that settles something conclusively
   "The candidate's debate performance was the clincher in the election";
   - decisive factor
    
3. A tool used to clinch nails, bolts or rivets
   "The metalworker used a clincher to flatten the ends of the rivets"

Derived forms: clinchers

Type of: argument, causal factor, determinant, determinative, determiner, determining factor, statement, tool

Encyclopedia: Clincher