Hydrogen fluoride is a highly corrosive and toxic gas which is commonly used in a variety of industrial processes. When it is dissolved in water, it forms a solution that can be used for various applications. There are several synonyms for the solution of hydrogen fluoride in water, including hydrofluoric acid, fluorhydric acid, and aqueous hydrogen fluoride. Hydrofluoric acid is the most commonly used term, and it is often used interchangeably with the solution of hydrogen fluoride in water. Fluorhydric acid is a less common term, but it is also used to describe the same solution. Aqueous hydrogen fluoride is a more technical term that is used in scientific literature. Regardless of the term used, it is important to handle this solution with extreme caution due to its hazardous nature.