What does serging refer to in sewing?

Serging specifically refers to a technique that involves sewing along the edges of fabric to prevent fraying. This is typically done using a specialized machine called a serger or overlock machine, which simultaneously trims and finishes the edges of the fabric with a continuous stitch. This method is particularly beneficial for knit fabrics and lightweight materials that may be prone to unraveling, enhancing both the durability and the appearance of the garment. By securing the raw edges, serging also contributes to a professional finish, making it an essential skill in garment construction and alterations.