What do the terms warp, weft, and bias refer to in fabric?

The terms warp, weft, and bias refer specifically to the various directions and angles of fabric construction. In weaving, 'warp' describes the set of threads that are held taut and run lengthwise on the loom. These threads provide the structure and strength to the fabric. Conversely, 'weft' refers to the threads that are woven across the width of the fabric, interlocking with the warp threads to create the final textile.

The term 'bias' describes a diagonal cut across the fabric, typically at a 45-degree angle to both the warp and weft. This diagonal direction allows the fabric to have greater stretch and is often utilized in garment making for creating shapes and allowing for ease of movement.

Understanding these terms is essential for anyone working with fabrics, as they directly influence how the fabric behaves, drapes, and is utilized in various applications, such as clothing construction and pattern design. The other choices do not apply because they refer to concepts unrelated to the structural characteristics and directions of the fabric itself.