Bright's Disease refers to a group of kidney conditions that share certain symptoms like proteinuria and haematuria. Some synonyms for this term include nephritis, glomerulonephritis, renal disease, and kidney disease. Nephritis is a term used to describe inflammation of the kidney tissue, while glomerulonephritis refers to inflammation of the glomeruli, tiny blood vessels in the kidneys. Both of these terms are often used interchangeably with Bright's Disease. The term renal disease is a more general term that encompasses any condition that affects the kidneys, while kidney disease specifically refers to any condition that impairs normal kidney function.