Exophthalmic goitre is a health condition that affects the thyroid gland, causing the eyes to bulge out and the neck to swell. There are a number of different synonyms that may be used to describe this condition, depending on the context and the audience. Some of the most common synonyms include Graves' disease, hyperthyroidism, thyrotoxicosis, and toxic diffuse goitre. Other possible synonyms might include overactive thyroid, enlarged thyroid gland, or bulging eyes. Whatever term is used to describe this condition, it is vital that patients receive appropriate diagnosis and treatment to manage their symptoms and prevent long-term health complications.