1) Machine stitch 2) Sewing stitch 3) Sewing-machine stitch 
A lockstitch is the most common mechanical stitch made by a sewing machine. The term `single needle stitching`, often found on dress shirt labels, refers to lockstitch. ==Structure== The lockstitch uses two threads, an upper and a lower. Lockstitch is so named because the two threads, upper and lower, `lock` (entwine) together in the hole in t...
[n] - machine stitch in which the top thread interlocks with the bobbin thread
noun machine stitch in which the top thread interlocks with the bobbin thread