Warp The threads on a loom over and under which other threads are passed to make clothes, they create the length of the cloth.
Weft The perpendicular threads to those of warp which create the height of the fabric. They are usually less twisted and less strong than those of the warp.
Whip-stitch A stitch used to join two edges of a cloth, worked from left to right with little stitches not too spaced and not too stretched.