When you sew something such as clothes, you make them or repair them by joining pieces of cloth together by passing thread through them with a needle. She sewed the dresses on the sewing machine Anyone can sew on a button, including you Mrs Roberts was a dressmaker, and she taught her daughter to sew
When something such as a hand or finger is sewn back by a doctor, it is joined with the patient's body using a needle and thread. The hand was preserved in ice by neighbours and sewn back on in hospital see also sewing. to use a needle and thread to make or repair clothes or to fasten something such as a button to them