S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
S: (n) cement (a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar)
S: (n) cement (something that hardens to act as adhesive material)
S: (n) cement (any of various materials used by dentists to fill cavities in teeth)