one act of passing thread in and out of cloth etc to join or decorate; to sew (something) up
join together
Cases of word usage
1) a basic way of knitting into the front of each stitch (purl)
2) a small, flat-headed nail; a long, loose stitch used to fasten pieces of cloth together loosely or temporarily; a sailing-ship's direction described according to the direction of the wind and the position of the sails (tack)
