Solid square is a term that is often used to describe a shape that has four straight sides and four right angles, all of equal length. There are, however, many synonyms for the term, including square block, cube, brick, tile, and slab. These synonyms are often used in different contexts, with square block and cube being preferred in construction and engineering, while tile and slab are preferred in the context of flooring and other decorative purposes. Regardless of the term used, the meaning remains the same, and that is a shape that is all about stability, strength, and stability.