clamp in WordNet English dictionary

1. a device (generally used by carpenters) that holds things firmly together
   clamp  clinch 
   

1. impose or inflict forcefully
   "The military government clamped a curfew onto the capital"
   clamp 
   
2. fasten or fix with a clamp
   "clamp the chair together until the glue has hardened"
   clamp