Nouns

(n)curb, curbing, kerban edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter)
(n)curb, curb bita horse's bit with an attached chain or strap to check the horse
(n)bridle, check, curbthe act of restraining power or action or limiting excess“his common sense is a bridle to his quick temper”

Verbs

(v)control, hold in, hold, contain, check, curb, moderatelessen 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”
(v)curbkeep to the curb“curb your dogs”
(v)restrict, curtail, curb, cut backplace restrictions on“curtail drinking in school”