Reflux Esophagitis, also known as Gastroesophageal Reflux Disease (GERD), is a medical condition where stomach acid repeatedly flows back into the esophagus. This condition causes irritation, inflammation, and erosion of the esophageal lining, leading to several uncomfortable symptoms such as heartburn, difficulty swallowing, and chest pain. While the term Reflux Esophagitis is commonly used, there are also several other synonyms that refer to the same condition. Some of these include Acid Reflux, Heartburn, Esophagitis, Gastrointestinal Reflux, and Reflux Disease. Regardless of the term used, it is essential to seek medical advice from a healthcare professional if experiencing any symptoms related to Reflux Esophagitis.