A cord is a string or rope made from various materials, such as cotton, nylon, or synthetic fibers, that is used for a variety of purposes. It can be used for tying, binding, or fastening objects, as well as for pulling or lifting heavy loads. Cords come in a range of sizes and thicknesses and can be made from a single strand of material or multiple strands twisted together to form a stronger rope. They are commonly used in a variety of industries, such as construction, transportation, and shipping, as well as in everyday household and recreational applications. For example, cords are used for lacing shoes, tying packages, hanging curtains, or starting an engine on a lawn mower.