ply /plaɪ/verb 9noun 6forms 6 verb9 •To work at (something) diligently.He plied his trade as carpenter for forty-three years. •To press upon; to urge persistently.to ply someone with questions or solicitations •To persist in offering something to, especially for the purpose of inducement or persuasion.[T]he true Gamesters pretended to be ill, and refused their Glass, while they plied heartily two young Fellows, who were to be afterwards pillaged, as indeed they were without Mercy. — 1749 •To travel over (a route) regularly.The steamer plies between several ports on the coast. •To wield or use (a tool, a weapon, etc.) steadily or vigorously.He plied his ax with bloody results. •To bend, to flex; to be bent by something, to give way or yield (to a force, etc.). •(no longer used) To work diligently.[…] Ere halfe these Authors be read, which will soon be with plying hard, and dayly, they cannot choose but be masters of any ordinary prose. — 1644 •(no longer used) To bend; to fold; to mould; (figuratively) to adapt, to modify; to change (a person's) mind, to cause (a person) to submit. •(no longer used) To manoeuvre a sailing vessel so that the direction of the wind changes from one side of the vessel to the other; to work to windward, to beat, to tack. noun6 •A layer of material.It is possible to have a very well load balanced partition but with such a high ply that its slowest piece is slower than a not-so-well balanced partition with less ply. — 1999 •A strand that, twisted together with other strands, makes up rope or yarn. •(informal) Clipping of plywood.The compartment ceiling panels are of plastic material backed with ply or hardboard panels. — 1951 •In two-player sequential games, a "half-turn" or a move made by one of the players.He proposed to build Deep Purple, a super-computer capable of 24-ply look-ahead for chess. •(Scotland) A condition, a state.You may be sure, in the ply I was now taking, I had no objection to the proposal, and was rather a tiptoe for its accomplishment. — 1749 •A bent; a direction. formsplied · plying · plies · plieth · pliest · plys