To bend; to fold; to mould; to adapt, to modify; to change (a person's) mind, to cause (a person) to submit.
To bend, to flex; to be bent by something, to give way or yield (to a force, etc.).
To work at (something) diligently.
He plied his trade as carpenter for forty-three years.
To wield or use (a tool, a weapon, etc.) steadily or vigorously.
He plied his ax with bloody results.
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.
to ply someone with drink
To travel over (a route) regularly.
The steamer plies between several ports on the coast.
To work diligently.
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.