Check, restrain, control, repress, bridle, put under restraint, keep under, hold in check.
Wikipedia
Curb
A curb (North American English), or kerb (Commonwealth English except Canada; see spelling differences), is the edge where a raised sidewalk or road median/central reservation meets a street or other roadway.
1. By Sliman al–Shafi In the middle of Khan Yunis, opposite the vegetable stands in the municipal market, four youngsters aged 12 to 14 sat on the curbstone of the wet road.