Definition of "Cement" :
noun: a specialized bony substance covering the root of a tooth
noun: something that hardens to act as adhesive material
noun: 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
noun: concrete pavement is sometimes referred to as cement
"They stood on the grey cement beside the pool."
noun: any of various materials used by dentists to fill cavities in teeth
verb: make fast as if with cement
"We cemented our friendship."
verb: bind or join with or as if with cement
verb: cover or coat with cement