B2[I or T]to cut or damage a surface or your skin slightly with or on something sharp or rough: We scratched the paintwork trying to get the bed into Martha's room.Be careful not to scratch yourselfon the roses.A few chickens were scratching about/around(= searching with their beaks) in the yard for grain.Cutting and stabbingB2[T]If you scratch something on or off a surface, you add it or remove it by scratching: People have been scratching their names on this rock for years.I'm afraid I scratched some paint off the door as I was getting out of the car.Cutting and stabbingB2[I]If an animal scratches, it rubs something with its claws (= sharp nails): The dog's scratching at the door - he wants to be let in.Animal (non-human) behaviourScratching and rubbingB2[I or T]to rub your skin with your nails: He was scratching (at) his mosquito bites.Hannah scratched her head thoughtfully.Scratching and rubbing