Waterproof cement is a compound that is used to prevent water penetration. It is a vital material for construction work in regions that are exposed to heavy rainfall and high humidity, in order to provide a strong and enduring structure. Various terms can be used as synonyms for waterproof cement, which means that it can be referred to using different technical or common terms. For example, it can be called as water-resistant mortar, moisture-resistant concrete, or impermeable grout. Other terms that could be used include damp-proofing material, water-blocking compound, and waterproof coating. Ultimately, whatever term is used to refer to this material, its function remains the same - to prevent water from seeping through the surface.