Cement is a SUBSTANCE used in many construction and building projects. It is a powdery material made from a mixture of calcined limestone, clay, and other materials. PUTTY is a type of cement that is used to fill cracks and holes in walls and other surfaces. ADHESIVE is a SUBSTANCE that is used to stick two objects together. CONCRETE is a type of cement that is used to make strong and durable structures. BINDER is a SUBSTANCE that is used to hold particles of a material together. BOND is a strong connection between two objects or substances. LUTE is a type of cement used to seal joints and seams. ADHERE is to stick firmly to a surface. LIME is a type of cement that is used to make mortar. FASTEN is to secure an object in place. BIND is to tie or hold together. UNITE is to join together. PASTE is a thick liquid used to stick things together. GLUE is a sticky SUBSTANCE used to attach objects together.