What does "spun" mean?

Spun: imp. & p. p. of Spin. Spun hay, hay twisted into ropes for convenient carriage, as on a military expedition. -- Spun silk, a cheap article produced from floss, or short-fibered, broken, and waste silk, carded and spun, in distinction from the long filaments wound from the cocoon. It is often mixed with cotton. -- Spun yarn (Naut.), a line formed of two or more rope-yarns loosely twisted.