an endorsed policy in the platform of a political party
"The senator argued that his opponent's plank on environmental protection was too vague to inspire real change among voters."
A long, broad and thick piece of timber, as opposed to a board which is less thick.
"The carpenter laid down a heavy oak plank across the gap in the floorboard to support his weight while he worked on the ceiling above."
set (something or oneself) down with or as if with a noise
"He planked the money on the table"
"He planked himself into the sofa"
To cover something with planking.
"The old dock was repaired by planking over the rotting sections to make it safe for boats again."
A surname.
"My neighbor, Mr. Plank, was the first person to arrive at the community garden meeting."
The word plank comes from Old French and ultimately traces back to Latin and Ancient Greek, where it originally referred to a phalanx or row of soldiers. Over time, the meaning shifted in English to describe a long, flat piece of wood.