1. A border or edging, typically made of stone or concrete, that separates a sidewalk from a street or road.
Usage: British English; American English typically uses 'curb' or 'curbing'.

1. Present participle of 'kerb': to provide with a kerb or to restrain or control something.
Usage: British English spelling; American English uses 'curb'.

Examples

• The new kerbing along the street was installed last month.
• The city is kerbing spending to balance the budget.
• Vehicles parked along the kerbing must display a permit.
• They are kerbing the garden with decorative stone.
• The kerbing prevents water from flowing onto the sidewalk.
• She carefully drove close to the kerbing to avoid the pothole.