board, plank -- (a stout length of sawn timber; made in a wide variety of sizes and used for many purposes)
plank -- (an endorsed policy in the platform of a political party)
Overview of verb plank
The verb plank has 3 senses
plank, plank over -- (cover with planks; "The streets were planked")
plank, flump, plonk, plop, plunk, plump down, plunk down, plump -- (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")
plank -- (cook and serve on a plank; "Planked vegetable"; "Planked shad")