Topic: ROADS
| Date: | 1400-1500 |
| Language: | French |
| Origin: | courbe 'curve, curved piece of wood or metal', from Latin curvus; CURVE2 |
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curb2 [countable]
1 an influence which helps to control or limit something
2 American EnglishTTR the raised edge of a road, between where people can walk and cars can drive [= kerb BrE; ↪ pavement, sidewalk]

We are trying to keep a curb on their activities.