1. A numerical designation of yarn size indicating the relationship of length to weight. (Also see YARN NUMBER.) 2. The number of warp yarns (ends) and filling yarns (picks) per inch in a woven fabric, or the number of wales and courses per inch in a knit fabric. For example, a fabric count of 68 x 52 indicates 68 ends per inch in the warp and 52 picks per inch in the filling.