Foam board is a popular material used for various types of crafting, art, and design projects. However, there are several other terms and synonyms used to describe this versatile material. Some of the common synonyms for foam board are foam core board, foam mounting board, foam poster board, foam display board, foam insulation board, and foam sheet. These synonyms describe the different applications and uses of foam board, depending on the thickness, density, and coating used in the manufacturing process. Regardless of the term used, foam board remains a lightweight and durable material that is easy to cut, shape, and manipulate into various shapes and sizes.