planks is a form of:

Plank



noun
1.
(បច្ចេកទេស) គោលការណ៍គ្រឹះរបស់គណបក្ស បញ្ហាមួយក្នុងគោលនយោបាយរបស់បក្សមុនពេលបោះឆ្នោត
ENGLISH MEANING
noun
1.
A broad piece of sawed timber, differing from a board only in being thicker.
2.
(FIGURATIVE) That which supports or upholds, as a board does a swimmer.
3.
One of the separate articles in a declaration of the principles of a party or cause; as, a plank in the national platform.
verb
1.
(TRANSITIVE) To cover or lay with planks; as, to plank a floor or a ship.
2.
(TRANSITIVE) To lay down, as on a plank or table; to stake or pay cash; as, to plank money in a wager.
3.
(TRANSITIVE) To harden, as hat bodies, by felting.
4.
(TRANSITIVE) To splice together the ends of slivers of wool, for subsequent drawing.