curbing

(noun) an edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter). Synonyms: curb, kerb.

(verb) lessen the intensity of; temper; hold in restraint; hold or keep within limits. Synonyms: control, hold in, hold, contain, check, curb, moderate. Examples: "Moderate your alcohol intake." "Hold your tongue." "Hold your temper." "Control your anger."

(verb) to put down by force or authority. Synonyms: suppress, stamp down, inhibit, subdue, conquer, curb. Examples: "Suppress a nascent uprising." "Stamp down on littering." "Conquer one's desires."

(verb) keep to the curb. Synonyms: curb. Example: "Curb your dogs."

(verb) place restrictions on. Synonyms: restrict, curtail, curb, cut back. Example: "Curtail drinking in school."