constraint constraint /kənˈstreɪnt/

noun

1. The act of constraining; the threat or use of force to control the thoughts or behavior of others  ( constraint )
   the act of constraining; the threat or use of force to control the thoughts or behavior of others
   
2. A device that retards something's motion  ( constraint , restraint )
   a device that retards something's motion
    The car did not have proper restraints fitted
   the car did not have proper restraints fitted
   
3. The state of being physically constrained  ( constraint , restraint )
   the state of being physically constrained
    Dogs should be kept under restraint
   dogs should be kept under restraint