The crossword solution for the term 'Hunk of Concrete' is SLAB, which is a four-letter word. A SLAB is a flat piece of concrete that is used in construction and is usually thicker than a floor or roof. Slabs are often used to create foundations, walls, and other structures. They can also be used to create walkways, driveways, and patios. Slabs are typically made from reinforced concrete, which is a mixture of cement, sand, gravel, and water.