What are fibers twisted together or laid side by side referred to as?

The correct answer, "yarns," refers to the strands formed by twisting fibers together or laying them side by side. Yarns are the building blocks for textiles and fabrics, serving as the primary material from which fabrics are woven or knitted. The twisting of fibers creates strength and flexibility, which are essential qualities for the manufacturing of various types of fabric used in clothing and other textiles.

When fibers are spun into yarns, they can vary in thickness, texture, and composition, allowing for a diverse range of fabrics to be produced. This process is instrumental in ensuring that the final product has the desired characteristics for its intended use, whether that be in fashion, upholstery, or industrial applications.

The term "fabric" refers to the completed material made from woven or knitted yarns, while "threads" are typically finer strands used for stitching or weaving and are often produced from yarns. The term "twists" isn't commonly used to refer to the resulting product; instead, it describes the action or technique used to create yarns.