WordWeb Online

1. Keep under control; keep in check
   - keep, keep back, hold back
    
2. Place limits on (extent or access)
   - restrict, trammel, limit, bound, confine, throttle
    
3. To close within bounds, limit or hold back from movement
   - confine, hold
    
4. Hold back
   - encumber, cumber [archaic], constrain
    
5. To compel or deter by or as if by threats
   - intimidate

Derived forms: restrains, restraining, restrained

See also: restrainer, restraint

Type of: bottle up, check, contain, control, curb, disable, discourage, disenable, hold, hold in, incapacitate, inhibit, moderate, suppress