present participle of ply

A bent; a direction.

A layer of material. / A strand that, twisted together with other strands, makes up rope or yarn. / (colloquial) Short for plywood.

(transitive) To work at (something) diligently. / (transitive) To wield or use (a tool, a weapon, etc.) steadily or vigorously. / (transitive) To press upon; to urge persistently.

(transitive, obsolete) To bend; to fold; to mould; (figuratively) to adapt, to modify; to change (a person's) mind, to cause (a person) to submit.

plural of ply

A tyre having a cross-ply construction.

(of vehicle tyres) Having a carcass constructed from layers of cords placed diagonally across one other; contrasted with radial construction.

Having three strands or layers

Yarn having three strands