Thickeners are substances that are added to a liquid to increase its viscosity or thickness. There are various synonyms for the term 'thickeners', including 'binder', 'emulsifier', 'gelling agent', 'gelatin', 'sizing agent', 'stabilizer', and 'viscosity modifier'. These substances are commonly used in the food industry to enhance the texture and mouthfeel of various products, such as sauces, soups, and desserts. Thickeners can also be found in other industries, such as cosmetics, pharmaceuticals, and printing inks. Each type of thickener has its unique properties and uses, allowing manufacturers to achieve the desired results when producing their products.