Line of stitching refers to the series of stitches that are made on a particular fabric, usually with the use of needle and thread. While it may seem like a simple phrase, there are several synonyms that can be used in its place, each with their own unique connotations. Some possible alternatives include seam, stitch line, stitching row, hemline, and sewing line. Seam and stitch line both evoke the idea of a more advanced or intricate level of sewing, while a hemline typically refers to the edge of a garment that is folded and stitched. Ultimately, the choice of synonym will depend on the context in which it is used and the desired tone or emphasis.