A strong acid is a substance that is highly reactive and can easily donate a proton to a base. Some synonyms for the word "strong acid" include "corrosive acid," "powerful acid," "highly acidic substance," "potent acid," and "highly reactive acid." These terms are often used interchangeably in chemical literature and textbooks. Common examples of strong acids include hydrochloric acid, sulfuric acid, and nitric acid. Strong acids play a vital role in various industrial processes, such as the production of fertilizers, plastics, and pharmaceuticals. However, they can also be highly dangerous if not handled with proper care and safety precautions.