A plough the depth of whose furrow is regulated by a wheel.

A plough without a forewheel under the beam.

An instrument for cutting grooves in ice to facilitate its removal.

A plough with a double mouldboard.

A firelighting tool of two sticks rubbed together to produce heat through friction and heat, and eventually an ember. Typically It uses a V-shaped base piece of wood, usually a soft wood that will produce dust hence tinder, and a hard wood "friction stick" as the activator.

present participle of plough ahead

Commonwealth English standard spelling of plow ahead.

simple past tense and past participle of plough ahead

plural of plough iron

The colter of a plough.