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YARN, the name given to any textile fibre when prepared by the process of spinning for being woven into cloth. It is only in a few minor and exceptional cases, such as the weaving of haircloth or wire, that there is any making of fabrics without the previous spinning of yarn. But yarn is of the most diverse description, and its value varies in proportion to its lustre, its bleaching and dyeing properties, its fineness, strength, elasticity, uniformity of diameter, smoothness, suppleness and colour in its natural condition. Yarn is single, folded and fancy, and if twisted to the right it is called twist way, and if to the left, weft way, but those terms do not necessarily imply that the yarn is for either warp or weft.

(T. W. F.)