To rub or scrape a surface with something sharp or rough, often to relieve an itch. She scratched her arm where the mosquito had bitten her.
To make a small cut or mark on a surface by scraping it with something sharp. He accidentally scratched the car door with his keys.
To cancel or remove something from a list or plan. They decided to scratch the last item from the agenda.
To withdraw or eliminate a competitor from a race or competition. The horse was scratched from the race due to an injury.
To write or draw something hastily or carelessly. He scratched a quick note on the back of an envelope.
To create the rhythmic sound effect used by DJs by rapidly moving a vinyl record back and forth while adjusting the mixer. He learned to scratch records like a professional turntablist.