1) Do backstitches 2) Embroidery stitch 3) Stitch 4) To sew with a backstitch 
Backstitch or back stitch and its variants stem stitch, outline stitch and split stitch are a class of embroidery and sewing stitches in which individual stitches are made backward to the general direction of sewing. In embroidery, these stitches form lines and are most often used to outline shapes and to add fine detail to an embroidered picture....
• (v. i.) To sew with backstitches; as, to backstitch a seam. • (n.) A stitch made by setting the needle back of the end of the last stitch, and bringing it out in front of the end.
Back'stitch` noun [ Back , adverb + stitch .] A stitch made by setting the needle back of the end of the last stitch, and bringing it out in front of the end. 
Used at the beginning and end of a machine sewn seam to anchor the seam in place; it involves a couple of extra stitches back and forth. (Also known as back tacking.)
[n] - overlapping stitch made by starting next stitch at middle of preceding one 2. [v] - do backstitches
2 or 3 reverse stitches to secure the stitches at the beginning and end of a seam. A backstitch or a back tack will secure the stitches and prevent your seam from coming undone.
noun overlapping stitch made by starting next stitch at middle of preceding one
a form of stitch used for outlining and detail on finished cross stitch.