vt to harden, as hat bodies, by felting.
2. plank ·vt to cover or lay with planks; as, to plank a floor or a ship.
3. plank ·noun fig.: that which supports or upholds, as a board does a swimmer.
4. plank ·vt to splice together the ends of slivers of wool, for subsequent drawing.
5. plank ·vt to lay down, as on a plank or table; to stake or pay cash; as, to plank money in a wager.
6. plank ·noun a broad piece of sawed timber, differing from a board only in being thicker. ·see board.
7. plank ·noun one of the separate articles in a declaration of the principles of a party or cause; as, a plank in the national platform.