Dictionary

To rub a surface with a sharp object, especially by a living creature to remove itching with nails, claws, etc.

Example: Could you please scratch my back?

To rub the skin with rough material causing a sensation of irritation; to cause itching.

Example: I don't like that new scarf because it scratches my neck.

To mark a surface with a sharp object, thereby leaving a scratch (noun).

Example: A real diamond can easily scratch a pane of glass.

To cross out, strike out, strike through some text on a page.

Produced by scratching.