curb in WordNet English dictionary

1. the act of restraining power or action or limiting excess
   "his common sense is a bridle to his quick temper"
   bridle  check  curb 
   
2. an edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter)
   curb  curbing  kerb 
   
3. a horse's bit with an attached chain or strap to check the horse
   curb  curb bit 
   

1. lessen the intensity of; temper; hold in restraint; hold or keep within limits
   "moderate your alcohol intake"; "hold your tongue"; "hold your temper"; "control your anger"
   control  hold in  hold  contain  check  curb  moderate 
   
2. to put down by force or authority
   "suppress a nascent uprising"; "stamp down on littering"; "conquer one's desires"
   suppress  stamp down  inhibit  subdue  conquer  curb 
   
3. place restrictions on
   "curtail drinking in school"
   restrict  curtail  curb  cut back 
   
4. keep to the curb
   "curb your dogs"
   curb