A strong adhesive is a material used to bind two surfaces together. GLUE, with four letters, is a common adhesive that is made from a variety of substances such as animal hide, plant sap, and synthetic polymers. EPOXY, with five letters, is a type of adhesive that is made from a combination of resin and hardener. Epoxyresin, with ten letters, is a type of EPOXY that is composed of a resin and a hardener that are mixed together to form a strong adhesive.