(an edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter))
(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")
(to put down by force or authority; "suppress a nascent uprising"; "stamp down on littering"; "conquer one's desires")
(keep to the curb; "curb your dogs")
(place restrictions on; "curtail drinking in school")