There are several synonyms for the French word "planchements," which refers to wooden planks or boards used as flooring or decking. These synonyms include "planches," "poutres," "lattes," "madriers," and "parquets." Each of these terms describes a slightly different type of wooden plank or board that can be used for various building or construction projects. Planches are the simplest form of wooden planks, while poutres are larger, thicker, and more durable. Lattes are smaller and more flexible, while madriers are larger and more heavy-duty. Lastly, parquets refer specifically to wooden planks used for flooring, often arranged in intricate patterns to create a decorative effect.