High Quality Content by WIKIPEDIA articles! Weaving is the textile art in which two distinct sets of yarns or threads, called the warp and the filling or weft, are interlaced with each other to form a fabric or cloth. THe warp threads run lengthways of the piece of cloth, and the weft runs across from side to side. CLoth is woven on a loom, a device for holding the warp threads in place while the filling threads are woven through them. WEft is an old English word meaning "that which is woven".