Which of the following best defines "warp" in fabric?

Warp refers to the lengthwise fibers in a fabric that are woven together with the crosswise fibers, known as weft or fill. In weaving, the warp threads are the set of yarns that run vertically on the loom and are held taut, providing the structure and strength to the fabric. This foundational aspect is critical in determining the fabric's overall characteristics, such as its strength, durability, and the way it drapes.

Understanding the role of warp is essential for those in the apparel and accessories industry, as it influences the quality and functionality of the final product. For example, fabrics with a higher number of warp threads generally possess greater durability and resilience, qualities that can affect consumer choices in purchasing decisions.