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Whipstitch is a stitching technique
which involves making small up and down stitches to firmly fasten two cloth pieces together. This approach gives strength and prevents the fabric from unraveling. The whipstitch can be used for a range of sewing projects, like finishing the edge, stitching patches, or even making blankets. It provides a neat and skilled look for the completed item.
whipstitch WordReferencecom Dictionary of English