There are several synonyms for the term "boggy material," which is used to describe wet and spongy ground. Some of these synonyms include marshy, swampy, waterlogged, sodden, quaggy, and slushy. Each of these words describes the same type of ground, but with slightly different connotations. For example, marshy implies a wide and open wetland area, while swampy suggests a denser forested wetland. Waterlogged implies that the ground has been saturated with water, while sodden describes ground that is soaked through and through. Quaggy implies ground that is unstable or treacherous, while slushy suggests that the ground is partially frozen or icy.