A marshy region is an area of land that is wet and often flooded, usually with standing water. The term can be broken down into four parts: FENLAND (7 letters), SWAMP (5 letters), FEN (3 letters) and BOG (3 letters). FENLAND is a low-lying area of land that is often flooded, usually with fresh water. Swamps are similar to fens, but they are usually filled with brackish or salty water. Fens are wetlands that are fed by groundwater and surface water, while bogs are wetlands that are fed only by precipitation.